/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/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 14:13:29,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 14:13:29,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 14:13:29,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 14:13:30,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 14:13:30,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 14:13:30,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 14:13:30,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 14:13:30,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 14:13:30,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 14:13:30,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 14:13:30,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 14:13:30,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 14:13:30,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 14:13:30,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 14:13:30,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 14:13:30,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 14:13:30,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 14:13:30,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 14:13:30,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 14:13:30,065 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 14:13:30,094 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 14:13:30,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 14:13:30,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 14:13:30,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 14:13:30,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 14:13:30,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 14:13:30,095 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 14:13:30,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 14:13:30,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 14:13:30,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 14:13:30,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 14:13:30,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 14:13:30,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 14:13:30,096 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 14:13:30,096 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 14:13:30,096 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 14:13:30,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 14:13:30,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 14:13:30,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 14:13:30,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 14:13:30,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 14:13:30,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:13:30,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 14:13:30,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 14:13:30,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 14:13:30,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 14:13:30,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 14:13:30,097 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 14:13:30,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 14:13:30,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 14:13:30,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 14:13:30,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 14:13:30,098 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 14:13:30,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 14:13:30,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 14:13:30,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 14:13:30,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 14:13:30,321 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 14:13:30,322 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 14:13:30,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c [2022-01-10 14:13:30,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a73b346/fa2e0930ff9e4d1a98dfd6a1a1291a44/FLAG0417fe092 [2022-01-10 14:13:30,677 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 14:13:30,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c [2022-01-10 14:13:30,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a73b346/fa2e0930ff9e4d1a98dfd6a1a1291a44/FLAG0417fe092 [2022-01-10 14:13:30,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9a73b346/fa2e0930ff9e4d1a98dfd6a1a1291a44 [2022-01-10 14:13:30,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 14:13:30,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 14:13:30,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 14:13:30,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 14:13:30,735 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 14:13:30,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:13:30" (1/1) ... [2022-01-10 14:13:30,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdff915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:30, skipping insertion in model container [2022-01-10 14:13:30,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:13:30" (1/1) ... [2022-01-10 14:13:30,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 14:13:30,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 14:13:30,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c[914,927] [2022-01-10 14:13:30,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c[7115,7128] [2022-01-10 14:13:31,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:13:31,121 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 14:13:31,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c[914,927] [2022-01-10 14:13:31,142 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-1+token_ring.13.cil-1.c[7115,7128] [2022-01-10 14:13:31,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 14:13:31,211 INFO L208 MainTranslator]: Completed translation [2022-01-10 14:13:31,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31 WrapperNode [2022-01-10 14:13:31,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 14:13:31,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 14:13:31,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 14:13:31,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 14:13:31,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,330 INFO L137 Inliner]: procedures = 80, calls = 97, calls flagged for inlining = 92, calls inlined = 330, statements flattened = 4966 [2022-01-10 14:13:31,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 14:13:31,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 14:13:31,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 14:13:31,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 14:13:31,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 14:13:31,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 14:13:31,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 14:13:31,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 14:13:31,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (1/1) ... [2022-01-10 14:13:31,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 14:13:31,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:13:31,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 14:13:31,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 14:13:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 14:13:31,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 14:13:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 14:13:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 14:13:31,676 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 14:13:31,677 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 14:13:33,512 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 14:13:33,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 14:13:33,528 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2022-01-10 14:13:33,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:13:33 BoogieIcfgContainer [2022-01-10 14:13:33,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 14:13:33,532 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 14:13:33,532 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 14:13:33,533 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 14:13:33,535 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:13:33" (1/1) ... [2022-01-10 14:13:33,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:13:33 BasicIcfg [2022-01-10 14:13:33,884 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 14:13:33,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 14:13:33,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 14:13:33,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 14:13:33,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:13:30" (1/4) ... [2022-01-10 14:13:33,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c87c20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:13:33, skipping insertion in model container [2022-01-10 14:13:33,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:13:31" (2/4) ... [2022-01-10 14:13:33,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c87c20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:13:33, skipping insertion in model container [2022-01-10 14:13:33,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:13:33" (3/4) ... [2022-01-10 14:13:33,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c87c20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 02:13:33, skipping insertion in model container [2022-01-10 14:13:33,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 02:13:33" (4/4) ... [2022-01-10 14:13:33,889 INFO L111 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-1+token_ring.13.cil-1.cTransformedIcfg [2022-01-10 14:13:33,895 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 14:13:33,895 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-01-10 14:13:33,939 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 14:13:33,946 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 14:13:33,946 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-10 14:13:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 2136 states, 2131 states have (on average 1.5011731581417176) internal successors, (3199), 2135 states have internal predecessors, (3199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:33,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 14:13:33,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:33,983 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] [2022-01-10 14:13:33,984 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:33,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:33,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1077270768, now seen corresponding path program 1 times [2022-01-10 14:13:33,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:33,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069719916] [2022-01-10 14:13:33,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:33,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:34,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:34,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:34,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069719916] [2022-01-10 14:13:34,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069719916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:34,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:34,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:34,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136301180] [2022-01-10 14:13:34,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:34,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:34,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:34,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:34,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:34,312 INFO L87 Difference]: Start difference. First operand has 2136 states, 2131 states have (on average 1.5011731581417176) internal successors, (3199), 2135 states have internal predecessors, (3199), 0 states have call successors, (0), 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 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:34,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:34,493 INFO L93 Difference]: Finished difference Result 4180 states and 6239 transitions. [2022-01-10 14:13:34,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:34,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-01-10 14:13:34,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:34,515 INFO L225 Difference]: With dead ends: 4180 [2022-01-10 14:13:34,515 INFO L226 Difference]: Without dead ends: 2219 [2022-01-10 14:13:34,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:34,527 INFO L933 BasicCegarLoop]: 3147 mSDtfsCounter, 124 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 6264 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:34,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 6264 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:13:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2219 states. [2022-01-10 14:13:34,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2219 to 2215. [2022-01-10 14:13:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 2211 states have (on average 1.4767073722297603) internal successors, (3265), 2214 states have internal predecessors, (3265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 3265 transitions. [2022-01-10 14:13:34,692 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 3265 transitions. Word has length 44 [2022-01-10 14:13:34,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:34,692 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 3265 transitions. [2022-01-10 14:13:34,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 3265 transitions. [2022-01-10 14:13:34,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 14:13:34,697 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:34,697 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] [2022-01-10 14:13:34,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 14:13:34,697 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:34,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:34,699 INFO L85 PathProgramCache]: Analyzing trace with hash 127942353, now seen corresponding path program 1 times [2022-01-10 14:13:34,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:34,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361514743] [2022-01-10 14:13:34,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:34,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:34,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:34,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:34,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361514743] [2022-01-10 14:13:34,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361514743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:34,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:34,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:34,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497964981] [2022-01-10 14:13:34,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:34,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:34,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:34,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:34,807 INFO L87 Difference]: Start difference. First operand 2215 states and 3265 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:34,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:34,892 INFO L93 Difference]: Finished difference Result 2501 states and 3663 transitions. [2022-01-10 14:13:34,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:34,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2022-01-10 14:13:34,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:34,899 INFO L225 Difference]: With dead ends: 2501 [2022-01-10 14:13:34,899 INFO L226 Difference]: Without dead ends: 2371 [2022-01-10 14:13:34,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:34,900 INFO L933 BasicCegarLoop]: 3140 mSDtfsCounter, 3093 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3093 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:34,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3093 Valid, 3258 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:34,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2022-01-10 14:13:34,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2367. [2022-01-10 14:13:34,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 2363 states have (on average 1.4688954718578078) internal successors, (3471), 2366 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:34,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3471 transitions. [2022-01-10 14:13:34,939 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3471 transitions. Word has length 44 [2022-01-10 14:13:34,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:34,939 INFO L470 AbstractCegarLoop]: Abstraction has 2367 states and 3471 transitions. [2022-01-10 14:13:34,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:34,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3471 transitions. [2022-01-10 14:13:34,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 14:13:34,940 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:34,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:34,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 14:13:34,941 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:34,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:34,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1733659070, now seen corresponding path program 1 times [2022-01-10 14:13:34,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:34,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169148765] [2022-01-10 14:13:34,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:34,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:34,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:34,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:34,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169148765] [2022-01-10 14:13:34,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169148765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:34,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:34,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:34,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111834797] [2022-01-10 14:13:34,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:34,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:34,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:34,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:34,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:34,983 INFO L87 Difference]: Start difference. First operand 2367 states and 3471 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:35,087 INFO L93 Difference]: Finished difference Result 2915 states and 4231 transitions. [2022-01-10 14:13:35,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:35,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-10 14:13:35,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:35,094 INFO L225 Difference]: With dead ends: 2915 [2022-01-10 14:13:35,095 INFO L226 Difference]: Without dead ends: 2580 [2022-01-10 14:13:35,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:35,096 INFO L933 BasicCegarLoop]: 3135 mSDtfsCounter, 94 mSDsluCounter, 3079 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 6214 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:35,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 6214 Invalid, 23 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:35,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-01-10 14:13:35,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2566. [2022-01-10 14:13:35,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2562 states have (on average 1.4594067135050741) internal successors, (3739), 2565 states have internal predecessors, (3739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3739 transitions. [2022-01-10 14:13:35,149 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3739 transitions. Word has length 45 [2022-01-10 14:13:35,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:35,149 INFO L470 AbstractCegarLoop]: Abstraction has 2566 states and 3739 transitions. [2022-01-10 14:13:35,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3739 transitions. [2022-01-10 14:13:35,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 14:13:35,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:35,150 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:35,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 14:13:35,151 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:35,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1704076607, now seen corresponding path program 1 times [2022-01-10 14:13:35,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:35,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529450822] [2022-01-10 14:13:35,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:35,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:35,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:35,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529450822] [2022-01-10 14:13:35,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529450822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:35,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:35,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:35,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771449570] [2022-01-10 14:13:35,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:35,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:35,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:35,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:35,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:35,193 INFO L87 Difference]: Start difference. First operand 2566 states and 3739 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:35,260 INFO L93 Difference]: Finished difference Result 3454 states and 4951 transitions. [2022-01-10 14:13:35,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:35,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-01-10 14:13:35,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:35,267 INFO L225 Difference]: With dead ends: 3454 [2022-01-10 14:13:35,268 INFO L226 Difference]: Without dead ends: 2978 [2022-01-10 14:13:35,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:35,269 INFO L933 BasicCegarLoop]: 3135 mSDtfsCounter, 3091 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:35,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3091 Valid, 3224 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:35,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2022-01-10 14:13:35,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2946. [2022-01-10 14:13:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2942 states have (on average 1.4408565601631542) internal successors, (4239), 2945 states have internal predecessors, (4239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 4239 transitions. [2022-01-10 14:13:35,348 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 4239 transitions. Word has length 45 [2022-01-10 14:13:35,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:35,349 INFO L470 AbstractCegarLoop]: Abstraction has 2946 states and 4239 transitions. [2022-01-10 14:13:35,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 4239 transitions. [2022-01-10 14:13:35,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 14:13:35,351 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:35,351 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] [2022-01-10 14:13:35,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 14:13:35,351 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:35,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:35,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1274576478, now seen corresponding path program 1 times [2022-01-10 14:13:35,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:35,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323147484] [2022-01-10 14:13:35,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:35,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:35,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:35,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:35,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323147484] [2022-01-10 14:13:35,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323147484] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:35,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:35,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:35,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395280731] [2022-01-10 14:13:35,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:35,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:35,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:35,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:35,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:35,428 INFO L87 Difference]: Start difference. First operand 2946 states and 4239 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:35,526 INFO L93 Difference]: Finished difference Result 4149 states and 5852 transitions. [2022-01-10 14:13:35,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:35,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2022-01-10 14:13:35,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:35,535 INFO L225 Difference]: With dead ends: 4149 [2022-01-10 14:13:35,536 INFO L226 Difference]: Without dead ends: 3265 [2022-01-10 14:13:35,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:35,540 INFO L933 BasicCegarLoop]: 3139 mSDtfsCounter, 3088 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3088 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:35,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3088 Valid, 3228 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:35,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2022-01-10 14:13:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3243. [2022-01-10 14:13:35,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3243 states, 3239 states have (on average 1.4276011114541525) internal successors, (4624), 3242 states have internal predecessors, (4624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4624 transitions. [2022-01-10 14:13:35,612 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4624 transitions. Word has length 51 [2022-01-10 14:13:35,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:35,614 INFO L470 AbstractCegarLoop]: Abstraction has 3243 states and 4624 transitions. [2022-01-10 14:13:35,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4624 transitions. [2022-01-10 14:13:35,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 14:13:35,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:35,621 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:35,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 14:13:35,621 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:35,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:35,622 INFO L85 PathProgramCache]: Analyzing trace with hash 821524887, now seen corresponding path program 1 times [2022-01-10 14:13:35,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:35,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176898746] [2022-01-10 14:13:35,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:35,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:13:35,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:35,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176898746] [2022-01-10 14:13:35,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176898746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:35,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:35,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:13:35,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480209855] [2022-01-10 14:13:35,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:35,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:13:35,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:35,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:13:35,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:13:35,728 INFO L87 Difference]: Start difference. First operand 3243 states and 4624 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:35,856 INFO L93 Difference]: Finished difference Result 4962 states and 6953 transitions. [2022-01-10 14:13:35,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:13:35,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 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 52 [2022-01-10 14:13:35,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:35,869 INFO L225 Difference]: With dead ends: 4962 [2022-01-10 14:13:35,870 INFO L226 Difference]: Without dead ends: 3821 [2022-01-10 14:13:35,873 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 14:13:35,873 INFO L933 BasicCegarLoop]: 3128 mSDtfsCounter, 354 mSDsluCounter, 9513 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 12641 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:35,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [354 Valid, 12641 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:35,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3821 states. [2022-01-10 14:13:35,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3821 to 3261. [2022-01-10 14:13:35,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 3257 states have (on average 1.4190973288302118) internal successors, (4622), 3260 states have internal predecessors, (4622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 4622 transitions. [2022-01-10 14:13:35,973 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 4622 transitions. Word has length 52 [2022-01-10 14:13:35,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:35,974 INFO L470 AbstractCegarLoop]: Abstraction has 3261 states and 4622 transitions. [2022-01-10 14:13:35,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:35,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 4622 transitions. [2022-01-10 14:13:35,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 14:13:35,975 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:35,975 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:35,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 14:13:35,975 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:35,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:35,975 INFO L85 PathProgramCache]: Analyzing trace with hash 832841014, now seen corresponding path program 1 times [2022-01-10 14:13:35,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:35,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222654841] [2022-01-10 14:13:35,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:35,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:36,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:36,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:36,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222654841] [2022-01-10 14:13:36,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222654841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:36,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:36,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 14:13:36,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593609654] [2022-01-10 14:13:36,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:36,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 14:13:36,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:36,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 14:13:36,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 14:13:36,038 INFO L87 Difference]: Start difference. First operand 3261 states and 4622 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:36,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:36,198 INFO L93 Difference]: Finished difference Result 3487 states and 4918 transitions. [2022-01-10 14:13:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 14:13:36,199 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-10 14:13:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:36,208 INFO L225 Difference]: With dead ends: 3487 [2022-01-10 14:13:36,208 INFO L226 Difference]: Without dead ends: 3485 [2022-01-10 14:13:36,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:13:36,210 INFO L933 BasicCegarLoop]: 3136 mSDtfsCounter, 6318 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6318 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:36,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6318 Valid, 3224 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3485 states. [2022-01-10 14:13:36,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3485 to 3259. [2022-01-10 14:13:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 3256 states have (on average 1.4167690417690417) internal successors, (4613), 3258 states have internal predecessors, (4613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:36,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 4613 transitions. [2022-01-10 14:13:36,331 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 4613 transitions. Word has length 52 [2022-01-10 14:13:36,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:36,332 INFO L470 AbstractCegarLoop]: Abstraction has 3259 states and 4613 transitions. [2022-01-10 14:13:36,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:36,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 4613 transitions. [2022-01-10 14:13:36,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 14:13:36,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:36,333 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:36,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 14:13:36,333 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:36,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:36,333 INFO L85 PathProgramCache]: Analyzing trace with hash 48274650, now seen corresponding path program 1 times [2022-01-10 14:13:36,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:36,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752271534] [2022-01-10 14:13:36,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:36,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:36,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:36,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752271534] [2022-01-10 14:13:36,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752271534] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 14:13:36,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173100675] [2022-01-10 14:13:36,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:36,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:13:36,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 14:13:36,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-10 14:13:36,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-10 14:13:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:36,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 14:13:36,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 14:13:36,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:36,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 14:13:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:37,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173100675] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 14:13:37,229 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-10 14:13:37,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-01-10 14:13:37,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834856209] [2022-01-10 14:13:37,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-10 14:13:37,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-10 14:13:37,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:37,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-10 14:13:37,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 14:13:37,235 INFO L87 Difference]: Start difference. First operand 3259 states and 4613 transitions. Second operand has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:37,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:37,616 INFO L93 Difference]: Finished difference Result 5556 states and 7675 transitions. [2022-01-10 14:13:37,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 14:13:37,617 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 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 53 [2022-01-10 14:13:37,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:37,643 INFO L225 Difference]: With dead ends: 5556 [2022-01-10 14:13:37,644 INFO L226 Difference]: Without dead ends: 5554 [2022-01-10 14:13:37,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-10 14:13:37,646 INFO L933 BasicCegarLoop]: 3289 mSDtfsCounter, 9830 mSDsluCounter, 13264 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9830 SdHoareTripleChecker+Valid, 16553 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:37,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9830 Valid, 16553 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:37,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5554 states. [2022-01-10 14:13:37,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5554 to 4204. [2022-01-10 14:13:37,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4204 states, 4201 states have (on average 1.3977624375148774) internal successors, (5872), 4203 states have internal predecessors, (5872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:37,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 5872 transitions. [2022-01-10 14:13:37,879 INFO L78 Accepts]: Start accepts. Automaton has 4204 states and 5872 transitions. Word has length 53 [2022-01-10 14:13:37,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:37,880 INFO L470 AbstractCegarLoop]: Abstraction has 4204 states and 5872 transitions. [2022-01-10 14:13:37,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.1) internal successors, (151), 10 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:37,880 INFO L276 IsEmpty]: Start isEmpty. Operand 4204 states and 5872 transitions. [2022-01-10 14:13:37,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 14:13:37,881 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:37,881 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:37,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-10 14:13:38,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 14:13:38,103 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:38,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1019931142, now seen corresponding path program 2 times [2022-01-10 14:13:38,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:38,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5021838] [2022-01-10 14:13:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:38,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:38,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:38,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5021838] [2022-01-10 14:13:38,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5021838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:38,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:38,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:38,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483265367] [2022-01-10 14:13:38,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:38,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:38,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:38,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:38,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:38,143 INFO L87 Difference]: Start difference. First operand 4204 states and 5872 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:38,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:38,327 INFO L93 Difference]: Finished difference Result 5268 states and 7297 transitions. [2022-01-10 14:13:38,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:38,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-01-10 14:13:38,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:38,336 INFO L225 Difference]: With dead ends: 5268 [2022-01-10 14:13:38,336 INFO L226 Difference]: Without dead ends: 3582 [2022-01-10 14:13:38,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:38,339 INFO L933 BasicCegarLoop]: 3201 mSDtfsCounter, 3082 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:38,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3082 Valid, 3318 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:38,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3582 states. [2022-01-10 14:13:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3582 to 3566. [2022-01-10 14:13:38,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3566 states, 3563 states have (on average 1.3999438675273645) internal successors, (4988), 3565 states have internal predecessors, (4988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:38,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3566 states to 3566 states and 4988 transitions. [2022-01-10 14:13:38,473 INFO L78 Accepts]: Start accepts. Automaton has 3566 states and 4988 transitions. Word has length 56 [2022-01-10 14:13:38,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:38,473 INFO L470 AbstractCegarLoop]: Abstraction has 3566 states and 4988 transitions. [2022-01-10 14:13:38,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:38,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3566 states and 4988 transitions. [2022-01-10 14:13:38,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 14:13:38,474 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:38,475 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:38,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 14:13:38,475 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:38,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:38,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1381617474, now seen corresponding path program 1 times [2022-01-10 14:13:38,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:38,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428982650] [2022-01-10 14:13:38,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:38,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:38,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:38,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428982650] [2022-01-10 14:13:38,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428982650] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:38,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:38,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:38,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209283099] [2022-01-10 14:13:38,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:38,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:38,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:38,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:38,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:38,527 INFO L87 Difference]: Start difference. First operand 3566 states and 4988 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:38,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:38,698 INFO L93 Difference]: Finished difference Result 5993 states and 8108 transitions. [2022-01-10 14:13:38,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:38,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-01-10 14:13:38,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:38,724 INFO L225 Difference]: With dead ends: 5993 [2022-01-10 14:13:38,724 INFO L226 Difference]: Without dead ends: 3933 [2022-01-10 14:13:38,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:38,726 INFO L933 BasicCegarLoop]: 3224 mSDtfsCounter, 90 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 6343 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:38,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 6343 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:38,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3933 states. [2022-01-10 14:13:38,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3933 to 3933. [2022-01-10 14:13:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3933 states, 3930 states have (on average 1.3819338422391858) internal successors, (5431), 3932 states have internal predecessors, (5431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:38,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 5431 transitions. [2022-01-10 14:13:38,882 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 5431 transitions. Word has length 60 [2022-01-10 14:13:38,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:38,882 INFO L470 AbstractCegarLoop]: Abstraction has 3933 states and 5431 transitions. [2022-01-10 14:13:38,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:38,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 5431 transitions. [2022-01-10 14:13:38,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 14:13:38,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:38,884 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:38,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 14:13:38,884 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:38,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:38,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1950214589, now seen corresponding path program 1 times [2022-01-10 14:13:38,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:38,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040930174] [2022-01-10 14:13:38,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:38,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:38,925 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:13:38,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:38,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040930174] [2022-01-10 14:13:38,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040930174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:38,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:38,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:38,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972874122] [2022-01-10 14:13:38,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:38,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:38,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:38,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:38,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:38,927 INFO L87 Difference]: Start difference. First operand 3933 states and 5431 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:39,136 INFO L93 Difference]: Finished difference Result 5748 states and 7755 transitions. [2022-01-10 14:13:39,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:39,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 68 [2022-01-10 14:13:39,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:39,143 INFO L225 Difference]: With dead ends: 5748 [2022-01-10 14:13:39,143 INFO L226 Difference]: Without dead ends: 3933 [2022-01-10 14:13:39,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:39,146 INFO L933 BasicCegarLoop]: 3132 mSDtfsCounter, 3075 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3075 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:39,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3075 Valid, 3216 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:39,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3933 states. [2022-01-10 14:13:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3933 to 3933. [2022-01-10 14:13:39,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3933 states, 3930 states have (on average 1.3717557251908397) internal successors, (5391), 3932 states have internal predecessors, (5391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:39,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 5391 transitions. [2022-01-10 14:13:39,317 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 5391 transitions. Word has length 68 [2022-01-10 14:13:39,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:39,318 INFO L470 AbstractCegarLoop]: Abstraction has 3933 states and 5391 transitions. [2022-01-10 14:13:39,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:39,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 5391 transitions. [2022-01-10 14:13:39,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-10 14:13:39,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:39,323 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:39,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 14:13:39,323 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:39,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:39,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1403214075, now seen corresponding path program 1 times [2022-01-10 14:13:39,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:39,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361280018] [2022-01-10 14:13:39,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:39,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:39,360 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:13:39,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:39,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361280018] [2022-01-10 14:13:39,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361280018] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:39,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:39,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:39,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343073885] [2022-01-10 14:13:39,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:39,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:39,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:39,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:39,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:39,362 INFO L87 Difference]: Start difference. First operand 3933 states and 5391 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:39,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:39,514 INFO L93 Difference]: Finished difference Result 5512 states and 7378 transitions. [2022-01-10 14:13:39,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:39,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 69 [2022-01-10 14:13:39,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:39,521 INFO L225 Difference]: With dead ends: 5512 [2022-01-10 14:13:39,521 INFO L226 Difference]: Without dead ends: 3935 [2022-01-10 14:13:39,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:39,524 INFO L933 BasicCegarLoop]: 3217 mSDtfsCounter, 99 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 6330 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:39,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 6330 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:39,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3935 states. [2022-01-10 14:13:39,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3935 to 3933. [2022-01-10 14:13:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3933 states, 3930 states have (on average 1.3580152671755725) internal successors, (5337), 3932 states have internal predecessors, (5337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:39,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 5337 transitions. [2022-01-10 14:13:39,714 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 5337 transitions. Word has length 69 [2022-01-10 14:13:39,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:39,714 INFO L470 AbstractCegarLoop]: Abstraction has 3933 states and 5337 transitions. [2022-01-10 14:13:39,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:39,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 5337 transitions. [2022-01-10 14:13:39,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 14:13:39,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:39,717 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:39,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 14:13:39,717 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:39,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:39,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1756036337, now seen corresponding path program 1 times [2022-01-10 14:13:39,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:39,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972215609] [2022-01-10 14:13:39,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:39,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:39,745 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-10 14:13:39,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:39,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972215609] [2022-01-10 14:13:39,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972215609] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:39,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:39,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:39,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884567557] [2022-01-10 14:13:39,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:39,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:39,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:39,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:39,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:39,747 INFO L87 Difference]: Start difference. First operand 3933 states and 5337 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:39,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:39,906 INFO L93 Difference]: Finished difference Result 5494 states and 7358 transitions. [2022-01-10 14:13:39,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:39,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 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 100 [2022-01-10 14:13:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:39,913 INFO L225 Difference]: With dead ends: 5494 [2022-01-10 14:13:39,913 INFO L226 Difference]: Without dead ends: 4280 [2022-01-10 14:13:39,916 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 14:13:39,916 INFO L933 BasicCegarLoop]: 3129 mSDtfsCounter, 3106 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:39,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3106 Valid, 3217 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:39,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2022-01-10 14:13:40,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4238. [2022-01-10 14:13:40,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4238 states, 4235 states have (on average 1.3558441558441559) internal successors, (5742), 4237 states have internal predecessors, (5742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4238 states to 4238 states and 5742 transitions. [2022-01-10 14:13:40,093 INFO L78 Accepts]: Start accepts. Automaton has 4238 states and 5742 transitions. Word has length 100 [2022-01-10 14:13:40,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:40,094 INFO L470 AbstractCegarLoop]: Abstraction has 4238 states and 5742 transitions. [2022-01-10 14:13:40,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,094 INFO L276 IsEmpty]: Start isEmpty. Operand 4238 states and 5742 transitions. [2022-01-10 14:13:40,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 14:13:40,095 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:40,096 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:40,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 14:13:40,096 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:40,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:40,096 INFO L85 PathProgramCache]: Analyzing trace with hash 800623219, now seen corresponding path program 1 times [2022-01-10 14:13:40,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:40,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736180089] [2022-01-10 14:13:40,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:40,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:40,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:40,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736180089] [2022-01-10 14:13:40,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736180089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:40,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:40,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:40,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773039707] [2022-01-10 14:13:40,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:40,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:40,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:40,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:40,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:40,128 INFO L87 Difference]: Start difference. First operand 4238 states and 5742 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:40,242 INFO L93 Difference]: Finished difference Result 5238 states and 7000 transitions. [2022-01-10 14:13:40,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:40,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2022-01-10 14:13:40,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:40,247 INFO L225 Difference]: With dead ends: 5238 [2022-01-10 14:13:40,248 INFO L226 Difference]: Without dead ends: 3247 [2022-01-10 14:13:40,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:40,250 INFO L933 BasicCegarLoop]: 3155 mSDtfsCounter, 32 mSDsluCounter, 3107 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6262 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:40,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 6262 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:40,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2022-01-10 14:13:40,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3192. [2022-01-10 14:13:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 3189 states have (on average 1.3882094700533083) internal successors, (4427), 3191 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 4427 transitions. [2022-01-10 14:13:40,354 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 4427 transitions. Word has length 106 [2022-01-10 14:13:40,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:40,354 INFO L470 AbstractCegarLoop]: Abstraction has 3192 states and 4427 transitions. [2022-01-10 14:13:40,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 4427 transitions. [2022-01-10 14:13:40,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:13:40,356 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:40,356 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:40,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 14:13:40,356 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:40,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:40,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1018484517, now seen corresponding path program 1 times [2022-01-10 14:13:40,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:40,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223167308] [2022-01-10 14:13:40,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:40,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:40,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 14:13:40,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:40,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223167308] [2022-01-10 14:13:40,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223167308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:40,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:40,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:40,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046708303] [2022-01-10 14:13:40,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:40,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:40,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:40,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:40,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:40,389 INFO L87 Difference]: Start difference. First operand 3192 states and 4427 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:40,498 INFO L93 Difference]: Finished difference Result 4122 states and 5597 transitions. [2022-01-10 14:13:40,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:40,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 110 [2022-01-10 14:13:40,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:40,503 INFO L225 Difference]: With dead ends: 4122 [2022-01-10 14:13:40,503 INFO L226 Difference]: Without dead ends: 3196 [2022-01-10 14:13:40,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:40,504 INFO L933 BasicCegarLoop]: 3115 mSDtfsCounter, 71 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 6118 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:40,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 6118 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:40,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2022-01-10 14:13:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 3196. [2022-01-10 14:13:40,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 3193 states have (on average 1.3833385530848732) internal successors, (4417), 3195 states have internal predecessors, (4417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 4417 transitions. [2022-01-10 14:13:40,616 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 4417 transitions. Word has length 110 [2022-01-10 14:13:40,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:40,616 INFO L470 AbstractCegarLoop]: Abstraction has 3196 states and 4417 transitions. [2022-01-10 14:13:40,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 4417 transitions. [2022-01-10 14:13:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:13:40,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:40,617 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:40,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 14:13:40,618 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:40,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:40,618 INFO L85 PathProgramCache]: Analyzing trace with hash 777944388, now seen corresponding path program 1 times [2022-01-10 14:13:40,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:40,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508761420] [2022-01-10 14:13:40,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:40,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:40,650 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-01-10 14:13:40,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:40,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508761420] [2022-01-10 14:13:40,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508761420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:40,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:40,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:40,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585202976] [2022-01-10 14:13:40,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:40,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:40,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:40,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:40,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:40,651 INFO L87 Difference]: Start difference. First operand 3196 states and 4417 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:40,772 INFO L93 Difference]: Finished difference Result 4170 states and 5633 transitions. [2022-01-10 14:13:40,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:40,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 110 [2022-01-10 14:13:40,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:40,777 INFO L225 Difference]: With dead ends: 4170 [2022-01-10 14:13:40,777 INFO L226 Difference]: Without dead ends: 3240 [2022-01-10 14:13:40,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:40,779 INFO L933 BasicCegarLoop]: 3118 mSDtfsCounter, 3081 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3081 SdHoareTripleChecker+Valid, 3139 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:40,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3081 Valid, 3139 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:40,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3240 states. [2022-01-10 14:13:40,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3240 to 3240. [2022-01-10 14:13:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3240 states, 3237 states have (on average 1.3738029039233859) internal successors, (4447), 3239 states have internal predecessors, (4447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3240 states to 3240 states and 4447 transitions. [2022-01-10 14:13:40,891 INFO L78 Accepts]: Start accepts. Automaton has 3240 states and 4447 transitions. Word has length 110 [2022-01-10 14:13:40,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:40,892 INFO L470 AbstractCegarLoop]: Abstraction has 3240 states and 4447 transitions. [2022-01-10 14:13:40,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:40,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3240 states and 4447 transitions. [2022-01-10 14:13:40,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 14:13:40,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:40,893 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:40,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 14:13:40,893 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:40,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:40,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2107670148, now seen corresponding path program 1 times [2022-01-10 14:13:40,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:40,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417923506] [2022-01-10 14:13:40,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:40,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:40,931 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 14:13:40,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:40,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417923506] [2022-01-10 14:13:40,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417923506] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:40,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:40,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:40,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987747911] [2022-01-10 14:13:40,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:40,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:40,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:40,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:40,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:40,932 INFO L87 Difference]: Start difference. First operand 3240 states and 4447 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:41,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:41,072 INFO L93 Difference]: Finished difference Result 4195 states and 5612 transitions. [2022-01-10 14:13:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:41,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 110 [2022-01-10 14:13:41,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:41,077 INFO L225 Difference]: With dead ends: 4195 [2022-01-10 14:13:41,077 INFO L226 Difference]: Without dead ends: 3221 [2022-01-10 14:13:41,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:41,079 INFO L933 BasicCegarLoop]: 3179 mSDtfsCounter, 69 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 6265 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:41,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 6265 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:41,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2022-01-10 14:13:41,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 3212. [2022-01-10 14:13:41,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3209 states have (on average 1.366469305079464) internal successors, (4385), 3211 states have internal predecessors, (4385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:41,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 4385 transitions. [2022-01-10 14:13:41,191 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 4385 transitions. Word has length 110 [2022-01-10 14:13:41,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:41,192 INFO L470 AbstractCegarLoop]: Abstraction has 3212 states and 4385 transitions. [2022-01-10 14:13:41,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:41,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 4385 transitions. [2022-01-10 14:13:41,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 14:13:41,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:41,193 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:41,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 14:13:41,193 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:41,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:41,194 INFO L85 PathProgramCache]: Analyzing trace with hash -423119799, now seen corresponding path program 1 times [2022-01-10 14:13:41,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:41,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207731680] [2022-01-10 14:13:41,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:41,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:41,234 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-10 14:13:41,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:41,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207731680] [2022-01-10 14:13:41,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207731680] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:41,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:41,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:13:41,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935950559] [2022-01-10 14:13:41,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:41,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:13:41,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:41,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:13:41,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:13:41,235 INFO L87 Difference]: Start difference. First operand 3212 states and 4385 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:41,372 INFO L93 Difference]: Finished difference Result 3992 states and 5288 transitions. [2022-01-10 14:13:41,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 14:13:41,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 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 111 [2022-01-10 14:13:41,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:41,376 INFO L225 Difference]: With dead ends: 3992 [2022-01-10 14:13:41,376 INFO L226 Difference]: Without dead ends: 2852 [2022-01-10 14:13:41,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 14:13:41,377 INFO L933 BasicCegarLoop]: 3123 mSDtfsCounter, 129 mSDsluCounter, 9263 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 12386 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:41,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 12386 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:41,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2022-01-10 14:13:41,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2694. [2022-01-10 14:13:41,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2691 states have (on average 1.4017094017094016) internal successors, (3772), 2693 states have internal predecessors, (3772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 3772 transitions. [2022-01-10 14:13:41,523 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 3772 transitions. Word has length 111 [2022-01-10 14:13:41,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:41,524 INFO L470 AbstractCegarLoop]: Abstraction has 2694 states and 3772 transitions. [2022-01-10 14:13:41,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:41,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 3772 transitions. [2022-01-10 14:13:41,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 14:13:41,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:41,525 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:41,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 14:13:41,526 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:41,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:41,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1247089537, now seen corresponding path program 1 times [2022-01-10 14:13:41,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:41,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923605437] [2022-01-10 14:13:41,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:41,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:41,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:41,568 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 14:13:41,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:41,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923605437] [2022-01-10 14:13:41,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923605437] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:41,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:41,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:41,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355264602] [2022-01-10 14:13:41,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:41,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:41,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:41,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:41,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:41,571 INFO L87 Difference]: Start difference. First operand 2694 states and 3772 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:41,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:41,712 INFO L93 Difference]: Finished difference Result 3199 states and 4369 transitions. [2022-01-10 14:13:41,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:41,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-10 14:13:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:41,716 INFO L225 Difference]: With dead ends: 3199 [2022-01-10 14:13:41,716 INFO L226 Difference]: Without dead ends: 2700 [2022-01-10 14:13:41,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:41,718 INFO L933 BasicCegarLoop]: 3114 mSDtfsCounter, 61 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 6119 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:41,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 6119 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:41,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2022-01-10 14:13:41,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2700. [2022-01-10 14:13:41,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2697 states have (on average 1.400074156470152) internal successors, (3776), 2699 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:41,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3776 transitions. [2022-01-10 14:13:41,854 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 3776 transitions. Word has length 113 [2022-01-10 14:13:41,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:41,854 INFO L470 AbstractCegarLoop]: Abstraction has 2700 states and 3776 transitions. [2022-01-10 14:13:41,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:41,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 3776 transitions. [2022-01-10 14:13:41,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 14:13:41,856 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:41,856 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:41,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 14:13:41,856 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:41,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:41,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1695786176, now seen corresponding path program 1 times [2022-01-10 14:13:41,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:41,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734163167] [2022-01-10 14:13:41,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:41,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-10 14:13:41,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:41,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734163167] [2022-01-10 14:13:41,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734163167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:41,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:41,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:41,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521302553] [2022-01-10 14:13:41,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:41,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:41,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:41,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:41,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:41,894 INFO L87 Difference]: Start difference. First operand 2700 states and 3776 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:42,001 INFO L93 Difference]: Finished difference Result 3176 states and 4336 transitions. [2022-01-10 14:13:42,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:42,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-10 14:13:42,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:42,006 INFO L225 Difference]: With dead ends: 3176 [2022-01-10 14:13:42,006 INFO L226 Difference]: Without dead ends: 2671 [2022-01-10 14:13:42,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:42,007 INFO L933 BasicCegarLoop]: 3115 mSDtfsCounter, 3066 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3066 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:42,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3066 Valid, 3133 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:42,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2022-01-10 14:13:42,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2619. [2022-01-10 14:13:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2619 states, 2616 states have (on average 1.4036697247706422) internal successors, (3672), 2618 states have internal predecessors, (3672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 3672 transitions. [2022-01-10 14:13:42,105 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 3672 transitions. Word has length 113 [2022-01-10 14:13:42,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:42,105 INFO L470 AbstractCegarLoop]: Abstraction has 2619 states and 3672 transitions. [2022-01-10 14:13:42,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,105 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 3672 transitions. [2022-01-10 14:13:42,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 14:13:42,106 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:42,106 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:42,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 14:13:42,107 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:42,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:42,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1534183838, now seen corresponding path program 1 times [2022-01-10 14:13:42,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:42,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365062454] [2022-01-10 14:13:42,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:42,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:42,146 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 14:13:42,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:42,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365062454] [2022-01-10 14:13:42,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365062454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:42,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:42,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:42,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011641949] [2022-01-10 14:13:42,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:42,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:42,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:42,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:42,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:42,147 INFO L87 Difference]: Start difference. First operand 2619 states and 3672 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:42,263 INFO L93 Difference]: Finished difference Result 3107 states and 4232 transitions. [2022-01-10 14:13:42,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:42,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 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 124 [2022-01-10 14:13:42,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:42,267 INFO L225 Difference]: With dead ends: 3107 [2022-01-10 14:13:42,267 INFO L226 Difference]: Without dead ends: 2610 [2022-01-10 14:13:42,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:42,268 INFO L933 BasicCegarLoop]: 3144 mSDtfsCounter, 30 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 6197 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:42,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 6197 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:42,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2022-01-10 14:13:42,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 2605. [2022-01-10 14:13:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 2602 states have (on average 1.3981552651806304) internal successors, (3638), 2604 states have internal predecessors, (3638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3638 transitions. [2022-01-10 14:13:42,358 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3638 transitions. Word has length 124 [2022-01-10 14:13:42,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:42,358 INFO L470 AbstractCegarLoop]: Abstraction has 2605 states and 3638 transitions. [2022-01-10 14:13:42,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3638 transitions. [2022-01-10 14:13:42,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-01-10 14:13:42,360 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:42,360 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 14:13:42,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 14:13:42,360 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:42,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:42,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1843727105, now seen corresponding path program 1 times [2022-01-10 14:13:42,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:42,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288086303] [2022-01-10 14:13:42,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:42,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-10 14:13:42,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:42,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288086303] [2022-01-10 14:13:42,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288086303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:42,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:42,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:13:42,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785893609] [2022-01-10 14:13:42,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:42,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:13:42,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:42,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:13:42,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:13:42,407 INFO L87 Difference]: Start difference. First operand 2605 states and 3638 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:42,523 INFO L93 Difference]: Finished difference Result 2933 states and 3997 transitions. [2022-01-10 14:13:42,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:13:42,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 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 124 [2022-01-10 14:13:42,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:42,526 INFO L225 Difference]: With dead ends: 2933 [2022-01-10 14:13:42,527 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:42,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 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 14:13:42,528 INFO L933 BasicCegarLoop]: 3111 mSDtfsCounter, 305 mSDsluCounter, 9272 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 12383 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:42,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [305 Valid, 12383 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:42,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:42,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.481243830207305) internal successors, (3001), 2027 states have internal predecessors, (3001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 3001 transitions. [2022-01-10 14:13:42,578 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 3001 transitions. Word has length 124 [2022-01-10 14:13:42,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:42,578 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 3001 transitions. [2022-01-10 14:13:42,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 3001 transitions. [2022-01-10 14:13:42,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:42,579 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:42,579 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:42,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 14:13:42,580 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:42,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:42,580 INFO L85 PathProgramCache]: Analyzing trace with hash 471082645, now seen corresponding path program 1 times [2022-01-10 14:13:42,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:42,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992780423] [2022-01-10 14:13:42,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:42,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:42,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:42,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:42,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992780423] [2022-01-10 14:13:42,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992780423] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:42,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:42,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:42,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300246456] [2022-01-10 14:13:42,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:42,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:42,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:42,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:42,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:42,612 INFO L87 Difference]: Start difference. First operand 2028 states and 3001 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:42,676 INFO L93 Difference]: Finished difference Result 4048 states and 5991 transitions. [2022-01-10 14:13:42,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:42,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:42,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:42,679 INFO L225 Difference]: With dead ends: 4048 [2022-01-10 14:13:42,679 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:42,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:42,682 INFO L933 BasicCegarLoop]: 2999 mSDtfsCounter, 2993 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2993 SdHoareTripleChecker+Valid, 3000 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 14:13:42,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2993 Valid, 3000 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:42,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:42,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:42,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4807502467917077) internal successors, (3000), 2027 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 3000 transitions. [2022-01-10 14:13:42,737 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 3000 transitions. Word has length 176 [2022-01-10 14:13:42,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:42,737 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 3000 transitions. [2022-01-10 14:13:42,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 3000 transitions. [2022-01-10 14:13:42,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:42,738 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:42,738 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:42,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 14:13:42,738 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:42,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:42,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1721431148, now seen corresponding path program 1 times [2022-01-10 14:13:42,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:42,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872673763] [2022-01-10 14:13:42,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:42,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:42,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:42,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:42,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872673763] [2022-01-10 14:13:42,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872673763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:42,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:42,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:42,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836152571] [2022-01-10 14:13:42,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:42,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:42,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:42,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:42,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:42,773 INFO L87 Difference]: Start difference. First operand 2028 states and 3000 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:42,864 INFO L93 Difference]: Finished difference Result 4034 states and 5963 transitions. [2022-01-10 14:13:42,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:42,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:42,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:42,867 INFO L225 Difference]: With dead ends: 4034 [2022-01-10 14:13:42,867 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:42,868 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 14:13:42,869 INFO L933 BasicCegarLoop]: 2990 mSDtfsCounter, 2974 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2974 SdHoareTripleChecker+Valid, 2990 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 14:13:42,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2974 Valid, 2990 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:42,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:42,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4782823297137215) internal successors, (2995), 2027 states have internal predecessors, (2995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2995 transitions. [2022-01-10 14:13:42,925 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2995 transitions. Word has length 176 [2022-01-10 14:13:42,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:42,925 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2995 transitions. [2022-01-10 14:13:42,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:42,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2995 transitions. [2022-01-10 14:13:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:42,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:42,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:42,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 14:13:42,926 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:42,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1812873588, now seen corresponding path program 1 times [2022-01-10 14:13:42,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:42,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030512612] [2022-01-10 14:13:42,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:42,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:42,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:42,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:42,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030512612] [2022-01-10 14:13:42,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030512612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:42,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:42,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:42,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939420930] [2022-01-10 14:13:42,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:42,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:42,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:42,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:42,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:42,961 INFO L87 Difference]: Start difference. First operand 2028 states and 2995 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:43,035 INFO L93 Difference]: Finished difference Result 4033 states and 5952 transitions. [2022-01-10 14:13:43,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:43,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:43,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:43,038 INFO L225 Difference]: With dead ends: 4033 [2022-01-10 14:13:43,038 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:43,040 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 14:13:43,041 INFO L933 BasicCegarLoop]: 2985 mSDtfsCounter, 2968 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2968 SdHoareTripleChecker+Valid, 2985 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 14:13:43,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2968 Valid, 2985 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:43,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:43,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:43,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4758144126357355) internal successors, (2990), 2027 states have internal predecessors, (2990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2990 transitions. [2022-01-10 14:13:43,101 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2990 transitions. Word has length 176 [2022-01-10 14:13:43,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:43,101 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2990 transitions. [2022-01-10 14:13:43,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2990 transitions. [2022-01-10 14:13:43,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:43,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:43,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:43,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 14:13:43,102 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:43,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:43,103 INFO L85 PathProgramCache]: Analyzing trace with hash -428421228, now seen corresponding path program 1 times [2022-01-10 14:13:43,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:43,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697592780] [2022-01-10 14:13:43,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:43,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:43,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:43,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:43,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697592780] [2022-01-10 14:13:43,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697592780] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:43,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:43,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:43,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923393462] [2022-01-10 14:13:43,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:43,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:43,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:43,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:43,135 INFO L87 Difference]: Start difference. First operand 2028 states and 2990 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:43,205 INFO L93 Difference]: Finished difference Result 4032 states and 5941 transitions. [2022-01-10 14:13:43,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:43,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:43,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:43,208 INFO L225 Difference]: With dead ends: 4032 [2022-01-10 14:13:43,208 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:43,209 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 14:13:43,210 INFO L933 BasicCegarLoop]: 2980 mSDtfsCounter, 2962 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2962 SdHoareTripleChecker+Valid, 2980 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 14:13:43,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2962 Valid, 2980 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:43,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:43,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:43,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4733464955577493) internal successors, (2985), 2027 states have internal predecessors, (2985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2985 transitions. [2022-01-10 14:13:43,268 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2985 transitions. Word has length 176 [2022-01-10 14:13:43,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:43,268 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2985 transitions. [2022-01-10 14:13:43,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2985 transitions. [2022-01-10 14:13:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:43,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:43,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:43,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 14:13:43,270 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:43,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:43,270 INFO L85 PathProgramCache]: Analyzing trace with hash 330562932, now seen corresponding path program 1 times [2022-01-10 14:13:43,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:43,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935323760] [2022-01-10 14:13:43,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:43,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:43,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:43,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935323760] [2022-01-10 14:13:43,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935323760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:43,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:43,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:43,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914156565] [2022-01-10 14:13:43,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:43,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:43,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:43,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:43,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:43,301 INFO L87 Difference]: Start difference. First operand 2028 states and 2985 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:43,372 INFO L93 Difference]: Finished difference Result 4031 states and 5930 transitions. [2022-01-10 14:13:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:43,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:43,375 INFO L225 Difference]: With dead ends: 4031 [2022-01-10 14:13:43,375 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:43,377 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 14:13:43,377 INFO L933 BasicCegarLoop]: 2975 mSDtfsCounter, 2956 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 2975 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 14:13:43,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2956 Valid, 2975 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:43,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:43,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.470878578479763) internal successors, (2980), 2027 states have internal predecessors, (2980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2980 transitions. [2022-01-10 14:13:43,455 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2980 transitions. Word has length 176 [2022-01-10 14:13:43,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:43,455 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2980 transitions. [2022-01-10 14:13:43,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2980 transitions. [2022-01-10 14:13:43,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:43,456 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:43,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:43,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 14:13:43,456 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:43,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:43,456 INFO L85 PathProgramCache]: Analyzing trace with hash 355046292, now seen corresponding path program 1 times [2022-01-10 14:13:43,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:43,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952225842] [2022-01-10 14:13:43,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:43,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:43,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:43,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952225842] [2022-01-10 14:13:43,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952225842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:43,487 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:43,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:43,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139166845] [2022-01-10 14:13:43,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:43,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:43,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:43,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:43,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:43,488 INFO L87 Difference]: Start difference. First operand 2028 states and 2980 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:43,575 INFO L93 Difference]: Finished difference Result 4030 states and 5919 transitions. [2022-01-10 14:13:43,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:43,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:43,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:43,579 INFO L225 Difference]: With dead ends: 4030 [2022-01-10 14:13:43,579 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:43,582 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 14:13:43,582 INFO L933 BasicCegarLoop]: 2970 mSDtfsCounter, 2950 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 2970 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 14:13:43,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2950 Valid, 2970 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:43,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:43,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.468410661401777) internal successors, (2975), 2027 states have internal predecessors, (2975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2975 transitions. [2022-01-10 14:13:43,651 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2975 transitions. Word has length 176 [2022-01-10 14:13:43,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:43,651 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2975 transitions. [2022-01-10 14:13:43,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2975 transitions. [2022-01-10 14:13:43,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:43,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:43,652 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:43,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 14:13:43,653 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:43,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:43,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1583826572, now seen corresponding path program 1 times [2022-01-10 14:13:43,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:43,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944553509] [2022-01-10 14:13:43,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:43,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:43,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:43,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:43,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944553509] [2022-01-10 14:13:43,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944553509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:43,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:43,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:43,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493258875] [2022-01-10 14:13:43,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:43,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:43,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:43,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:43,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:43,685 INFO L87 Difference]: Start difference. First operand 2028 states and 2975 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:43,767 INFO L93 Difference]: Finished difference Result 4029 states and 5908 transitions. [2022-01-10 14:13:43,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:43,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:43,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:43,771 INFO L225 Difference]: With dead ends: 4029 [2022-01-10 14:13:43,771 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:43,773 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 14:13:43,773 INFO L933 BasicCegarLoop]: 2965 mSDtfsCounter, 2944 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2944 SdHoareTripleChecker+Valid, 2965 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 14:13:43,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2944 Valid, 2965 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:43,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4659427443237907) internal successors, (2970), 2027 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2970 transitions. [2022-01-10 14:13:43,846 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2970 transitions. Word has length 176 [2022-01-10 14:13:43,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:43,846 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2970 transitions. [2022-01-10 14:13:43,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2970 transitions. [2022-01-10 14:13:43,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:43,847 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:43,847 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:43,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 14:13:43,847 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:43,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:43,848 INFO L85 PathProgramCache]: Analyzing trace with hash 431839124, now seen corresponding path program 1 times [2022-01-10 14:13:43,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:43,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805218707] [2022-01-10 14:13:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:43,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:43,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:43,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:43,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805218707] [2022-01-10 14:13:43,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805218707] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:43,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:43,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:43,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651306364] [2022-01-10 14:13:43,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:43,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:43,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:43,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:43,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:43,879 INFO L87 Difference]: Start difference. First operand 2028 states and 2970 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:43,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:43,963 INFO L93 Difference]: Finished difference Result 4028 states and 5897 transitions. [2022-01-10 14:13:43,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:43,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:43,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:43,966 INFO L225 Difference]: With dead ends: 4028 [2022-01-10 14:13:43,966 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:43,968 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 14:13:43,969 INFO L933 BasicCegarLoop]: 2960 mSDtfsCounter, 2938 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2938 SdHoareTripleChecker+Valid, 2960 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 14:13:43,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2938 Valid, 2960 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:43,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:44,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4634748272458045) internal successors, (2965), 2027 states have internal predecessors, (2965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2965 transitions. [2022-01-10 14:13:44,089 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2965 transitions. Word has length 176 [2022-01-10 14:13:44,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:44,089 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2965 transitions. [2022-01-10 14:13:44,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2965 transitions. [2022-01-10 14:13:44,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:44,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:44,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:44,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 14:13:44,090 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:44,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:44,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1719896716, now seen corresponding path program 1 times [2022-01-10 14:13:44,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:44,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183660873] [2022-01-10 14:13:44,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:44,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:44,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:44,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183660873] [2022-01-10 14:13:44,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183660873] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:44,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:44,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:44,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593605438] [2022-01-10 14:13:44,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:44,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:44,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:44,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:44,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:44,126 INFO L87 Difference]: Start difference. First operand 2028 states and 2965 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:44,241 INFO L93 Difference]: Finished difference Result 4027 states and 5886 transitions. [2022-01-10 14:13:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:44,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:44,244 INFO L225 Difference]: With dead ends: 4027 [2022-01-10 14:13:44,244 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:44,246 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 14:13:44,246 INFO L933 BasicCegarLoop]: 2955 mSDtfsCounter, 2932 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2932 SdHoareTripleChecker+Valid, 2955 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 14:13:44,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2932 Valid, 2955 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:44,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:44,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:44,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4610069101678183) internal successors, (2960), 2027 states have internal predecessors, (2960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2960 transitions. [2022-01-10 14:13:44,341 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2960 transitions. Word has length 176 [2022-01-10 14:13:44,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:44,341 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2960 transitions. [2022-01-10 14:13:44,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2960 transitions. [2022-01-10 14:13:44,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:44,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:44,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:44,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 14:13:44,342 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:44,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:44,342 INFO L85 PathProgramCache]: Analyzing trace with hash -126739564, now seen corresponding path program 1 times [2022-01-10 14:13:44,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:44,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981359143] [2022-01-10 14:13:44,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:44,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:44,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:44,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:44,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:44,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981359143] [2022-01-10 14:13:44,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981359143] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:44,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:44,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:44,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831991587] [2022-01-10 14:13:44,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:44,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:44,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:44,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:44,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:44,373 INFO L87 Difference]: Start difference. First operand 2028 states and 2960 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:44,457 INFO L93 Difference]: Finished difference Result 4026 states and 5875 transitions. [2022-01-10 14:13:44,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:44,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:44,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:44,460 INFO L225 Difference]: With dead ends: 4026 [2022-01-10 14:13:44,460 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:44,462 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 14:13:44,462 INFO L933 BasicCegarLoop]: 2950 mSDtfsCounter, 2926 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2926 SdHoareTripleChecker+Valid, 2950 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 14:13:44,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2926 Valid, 2950 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:44,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:44,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4585389930898323) internal successors, (2955), 2027 states have internal predecessors, (2955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2955 transitions. [2022-01-10 14:13:44,537 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2955 transitions. Word has length 176 [2022-01-10 14:13:44,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:44,537 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2955 transitions. [2022-01-10 14:13:44,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2955 transitions. [2022-01-10 14:13:44,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:44,538 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:44,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:44,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 14:13:44,538 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:44,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:44,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1864315252, now seen corresponding path program 1 times [2022-01-10 14:13:44,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:44,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276741104] [2022-01-10 14:13:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:44,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:44,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:44,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:44,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276741104] [2022-01-10 14:13:44,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276741104] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:44,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:44,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:44,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936854168] [2022-01-10 14:13:44,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:44,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:44,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:44,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:44,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:44,578 INFO L87 Difference]: Start difference. First operand 2028 states and 2955 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:44,668 INFO L93 Difference]: Finished difference Result 4025 states and 5864 transitions. [2022-01-10 14:13:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:44,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:44,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:44,671 INFO L225 Difference]: With dead ends: 4025 [2022-01-10 14:13:44,671 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:44,673 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 14:13:44,673 INFO L933 BasicCegarLoop]: 2945 mSDtfsCounter, 2920 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2920 SdHoareTripleChecker+Valid, 2945 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 14:13:44,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2920 Valid, 2945 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:44,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:44,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.456071076011846) internal successors, (2950), 2027 states have internal predecessors, (2950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2950 transitions. [2022-01-10 14:13:44,800 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2950 transitions. Word has length 176 [2022-01-10 14:13:44,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:44,800 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2950 transitions. [2022-01-10 14:13:44,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2950 transitions. [2022-01-10 14:13:44,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:44,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:44,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:44,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 14:13:44,801 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:44,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash -980951148, now seen corresponding path program 1 times [2022-01-10 14:13:44,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:44,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234477448] [2022-01-10 14:13:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:44,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:44,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:44,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234477448] [2022-01-10 14:13:44,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234477448] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:44,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:44,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:44,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839893144] [2022-01-10 14:13:44,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:44,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:44,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:44,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:44,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:44,843 INFO L87 Difference]: Start difference. First operand 2028 states and 2950 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:44,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:44,934 INFO L93 Difference]: Finished difference Result 4023 states and 5851 transitions. [2022-01-10 14:13:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:44,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:44,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:44,936 INFO L225 Difference]: With dead ends: 4023 [2022-01-10 14:13:44,936 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:44,938 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 14:13:44,940 INFO L933 BasicCegarLoop]: 2940 mSDtfsCounter, 2913 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 2940 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 14:13:44,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2913 Valid, 2940 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:44,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:45,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:45,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4536031589338598) internal successors, (2945), 2027 states have internal predecessors, (2945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2945 transitions. [2022-01-10 14:13:45,020 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2945 transitions. Word has length 176 [2022-01-10 14:13:45,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:45,020 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2945 transitions. [2022-01-10 14:13:45,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2945 transitions. [2022-01-10 14:13:45,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:45,021 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:45,021 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:45,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 14:13:45,021 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:45,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:45,022 INFO L85 PathProgramCache]: Analyzing trace with hash -461007436, now seen corresponding path program 1 times [2022-01-10 14:13:45,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:45,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537974887] [2022-01-10 14:13:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:45,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:45,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:45,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:45,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537974887] [2022-01-10 14:13:45,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537974887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:45,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:45,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:45,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897282412] [2022-01-10 14:13:45,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:45,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:45,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:45,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:45,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:45,057 INFO L87 Difference]: Start difference. First operand 2028 states and 2945 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:45,155 INFO L93 Difference]: Finished difference Result 4022 states and 5840 transitions. [2022-01-10 14:13:45,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:45,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:45,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:45,158 INFO L225 Difference]: With dead ends: 4022 [2022-01-10 14:13:45,158 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:45,160 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 14:13:45,160 INFO L933 BasicCegarLoop]: 2935 mSDtfsCounter, 2907 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 2935 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 14:13:45,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2907 Valid, 2935 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:45,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:45,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4511352418558736) internal successors, (2940), 2027 states have internal predecessors, (2940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2940 transitions. [2022-01-10 14:13:45,244 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2940 transitions. Word has length 176 [2022-01-10 14:13:45,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:45,245 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2940 transitions. [2022-01-10 14:13:45,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2940 transitions. [2022-01-10 14:13:45,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:45,245 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:45,245 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:45,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 14:13:45,246 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:45,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1911069588, now seen corresponding path program 1 times [2022-01-10 14:13:45,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:45,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749517035] [2022-01-10 14:13:45,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:45,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:45,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:45,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:45,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749517035] [2022-01-10 14:13:45,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749517035] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:45,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:45,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:45,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260111673] [2022-01-10 14:13:45,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:45,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:45,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:45,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:45,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:45,279 INFO L87 Difference]: Start difference. First operand 2028 states and 2940 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:45,398 INFO L93 Difference]: Finished difference Result 4021 states and 5829 transitions. [2022-01-10 14:13:45,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:45,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:45,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:45,400 INFO L225 Difference]: With dead ends: 4021 [2022-01-10 14:13:45,400 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:45,402 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 14:13:45,402 INFO L933 BasicCegarLoop]: 2898 mSDtfsCounter, 2743 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2743 SdHoareTripleChecker+Valid, 3036 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:45,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2743 Valid, 3036 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:45,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:45,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:45,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4407699901283317) internal successors, (2919), 2027 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2919 transitions. [2022-01-10 14:13:45,512 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2919 transitions. Word has length 176 [2022-01-10 14:13:45,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:45,512 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2919 transitions. [2022-01-10 14:13:45,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2919 transitions. [2022-01-10 14:13:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:45,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:45,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:45,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 14:13:45,513 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:45,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:45,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1687045427, now seen corresponding path program 1 times [2022-01-10 14:13:45,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:45,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313118700] [2022-01-10 14:13:45,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:45,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:45,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:45,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313118700] [2022-01-10 14:13:45,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313118700] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:45,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:45,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:45,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212824472] [2022-01-10 14:13:45,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:45,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:45,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:45,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:45,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:45,549 INFO L87 Difference]: Start difference. First operand 2028 states and 2919 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:45,669 INFO L93 Difference]: Finished difference Result 4020 states and 5786 transitions. [2022-01-10 14:13:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:45,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:45,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:45,671 INFO L225 Difference]: With dead ends: 4020 [2022-01-10 14:13:45,671 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:45,682 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 14:13:45,685 INFO L933 BasicCegarLoop]: 2877 mSDtfsCounter, 2722 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:45,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2722 Valid, 3014 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:45,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:45,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4304047384007896) internal successors, (2898), 2027 states have internal predecessors, (2898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2898 transitions. [2022-01-10 14:13:45,781 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2898 transitions. Word has length 176 [2022-01-10 14:13:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:45,781 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2898 transitions. [2022-01-10 14:13:45,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2898 transitions. [2022-01-10 14:13:45,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:45,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:45,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:45,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 14:13:45,782 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:45,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:45,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1641776686, now seen corresponding path program 1 times [2022-01-10 14:13:45,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:45,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678645593] [2022-01-10 14:13:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:45,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:45,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:45,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:45,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678645593] [2022-01-10 14:13:45,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678645593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:45,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:45,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:45,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305891842] [2022-01-10 14:13:45,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:45,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:45,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:45,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:45,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:45,815 INFO L87 Difference]: Start difference. First operand 2028 states and 2898 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:45,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:45,937 INFO L93 Difference]: Finished difference Result 4019 states and 5743 transitions. [2022-01-10 14:13:45,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:45,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:45,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:45,940 INFO L225 Difference]: With dead ends: 4019 [2022-01-10 14:13:45,940 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:45,942 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 14:13:45,943 INFO L933 BasicCegarLoop]: 2856 mSDtfsCounter, 2701 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 2992 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:45,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2701 Valid, 2992 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:46,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:46,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4200394866732478) internal successors, (2877), 2027 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2877 transitions. [2022-01-10 14:13:46,041 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2877 transitions. Word has length 176 [2022-01-10 14:13:46,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:46,042 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2877 transitions. [2022-01-10 14:13:46,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2877 transitions. [2022-01-10 14:13:46,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:46,043 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:46,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:46,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 14:13:46,044 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:46,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:46,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1803472399, now seen corresponding path program 1 times [2022-01-10 14:13:46,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:46,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038493610] [2022-01-10 14:13:46,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:46,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:46,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:46,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:46,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038493610] [2022-01-10 14:13:46,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038493610] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:46,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:46,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:46,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607396600] [2022-01-10 14:13:46,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:46,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:46,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:46,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:46,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:46,085 INFO L87 Difference]: Start difference. First operand 2028 states and 2877 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:46,229 INFO L93 Difference]: Finished difference Result 4018 states and 5700 transitions. [2022-01-10 14:13:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:46,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:46,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:46,231 INFO L225 Difference]: With dead ends: 4018 [2022-01-10 14:13:46,231 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:46,233 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 14:13:46,234 INFO L933 BasicCegarLoop]: 2835 mSDtfsCounter, 2680 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2680 SdHoareTripleChecker+Valid, 2970 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:46,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2680 Valid, 2970 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:46,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:46,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.4096742349457059) internal successors, (2856), 2027 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2856 transitions. [2022-01-10 14:13:46,340 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2856 transitions. Word has length 176 [2022-01-10 14:13:46,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:46,340 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2856 transitions. [2022-01-10 14:13:46,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2856 transitions. [2022-01-10 14:13:46,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:46,342 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:46,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:46,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 14:13:46,343 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:46,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:46,343 INFO L85 PathProgramCache]: Analyzing trace with hash -863877872, now seen corresponding path program 1 times [2022-01-10 14:13:46,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:46,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809236876] [2022-01-10 14:13:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:46,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:46,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:46,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809236876] [2022-01-10 14:13:46,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809236876] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:46,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:46,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:46,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432966013] [2022-01-10 14:13:46,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:46,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:46,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:46,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:46,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:46,376 INFO L87 Difference]: Start difference. First operand 2028 states and 2856 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:46,510 INFO L93 Difference]: Finished difference Result 4017 states and 5657 transitions. [2022-01-10 14:13:46,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:46,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:46,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:46,512 INFO L225 Difference]: With dead ends: 4017 [2022-01-10 14:13:46,512 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:46,515 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 14:13:46,516 INFO L933 BasicCegarLoop]: 2814 mSDtfsCounter, 2659 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 2948 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:46,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2659 Valid, 2948 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:46,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:46,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:46,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.3993089832181638) internal successors, (2835), 2027 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2835 transitions. [2022-01-10 14:13:46,621 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2835 transitions. Word has length 176 [2022-01-10 14:13:46,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:46,621 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2835 transitions. [2022-01-10 14:13:46,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2835 transitions. [2022-01-10 14:13:46,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:46,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:46,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:46,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 14:13:46,622 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:46,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:46,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1697500079, now seen corresponding path program 1 times [2022-01-10 14:13:46,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:46,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501058191] [2022-01-10 14:13:46,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:46,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:46,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:46,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501058191] [2022-01-10 14:13:46,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501058191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:46,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:46,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:46,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164985329] [2022-01-10 14:13:46,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:46,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:46,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:46,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:46,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:46,669 INFO L87 Difference]: Start difference. First operand 2028 states and 2835 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:46,814 INFO L93 Difference]: Finished difference Result 4016 states and 5614 transitions. [2022-01-10 14:13:46,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:46,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:46,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:46,816 INFO L225 Difference]: With dead ends: 4016 [2022-01-10 14:13:46,816 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:46,819 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 14:13:46,819 INFO L933 BasicCegarLoop]: 2793 mSDtfsCounter, 2638 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2638 SdHoareTripleChecker+Valid, 2926 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:46,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2638 Valid, 2926 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:46,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:46,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:46,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.388943731490622) internal successors, (2814), 2027 states have internal predecessors, (2814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2814 transitions. [2022-01-10 14:13:46,951 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2814 transitions. Word has length 176 [2022-01-10 14:13:46,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:46,951 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2814 transitions. [2022-01-10 14:13:46,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:46,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2814 transitions. [2022-01-10 14:13:46,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:46,952 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:46,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:46,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-10 14:13:46,952 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:46,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:46,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1409121614, now seen corresponding path program 1 times [2022-01-10 14:13:46,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:46,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181555423] [2022-01-10 14:13:46,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:46,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:46,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:46,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181555423] [2022-01-10 14:13:46,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181555423] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:46,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:46,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:46,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435884951] [2022-01-10 14:13:46,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:46,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:46,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:46,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:46,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:46,989 INFO L87 Difference]: Start difference. First operand 2028 states and 2814 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:47,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:47,186 INFO L93 Difference]: Finished difference Result 4015 states and 5571 transitions. [2022-01-10 14:13:47,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:47,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:47,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:47,189 INFO L225 Difference]: With dead ends: 4015 [2022-01-10 14:13:47,189 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:47,192 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 14:13:47,192 INFO L933 BasicCegarLoop]: 2772 mSDtfsCounter, 2617 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 2904 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:47,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2617 Valid, 2904 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:47,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:47,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:47,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.37857847976308) internal successors, (2793), 2027 states have internal predecessors, (2793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:47,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2793 transitions. [2022-01-10 14:13:47,338 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2793 transitions. Word has length 176 [2022-01-10 14:13:47,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:47,338 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2793 transitions. [2022-01-10 14:13:47,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2793 transitions. [2022-01-10 14:13:47,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:47,339 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:47,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:47,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-10 14:13:47,339 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:47,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:47,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1622119021, now seen corresponding path program 1 times [2022-01-10 14:13:47,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:47,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985805767] [2022-01-10 14:13:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:47,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:47,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:47,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:47,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985805767] [2022-01-10 14:13:47,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985805767] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:47,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:47,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:47,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878981583] [2022-01-10 14:13:47,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:47,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:47,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:47,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:47,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:47,379 INFO L87 Difference]: Start difference. First operand 2028 states and 2793 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:47,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:47,525 INFO L93 Difference]: Finished difference Result 4014 states and 5528 transitions. [2022-01-10 14:13:47,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:47,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:47,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:47,527 INFO L225 Difference]: With dead ends: 4014 [2022-01-10 14:13:47,528 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:47,530 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 14:13:47,530 INFO L933 BasicCegarLoop]: 2751 mSDtfsCounter, 2596 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2596 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:47,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2596 Valid, 2882 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:47,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:47,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:47,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.368213228035538) internal successors, (2772), 2027 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:47,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2772 transitions. [2022-01-10 14:13:47,639 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2772 transitions. Word has length 176 [2022-01-10 14:13:47,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:47,640 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2772 transitions. [2022-01-10 14:13:47,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:47,640 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2772 transitions. [2022-01-10 14:13:47,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:47,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:47,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:47,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-10 14:13:47,641 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:47,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:47,641 INFO L85 PathProgramCache]: Analyzing trace with hash -657350004, now seen corresponding path program 1 times [2022-01-10 14:13:47,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:47,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38374651] [2022-01-10 14:13:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:47,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:47,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:47,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:47,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38374651] [2022-01-10 14:13:47,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38374651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:47,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:47,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:47,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458179006] [2022-01-10 14:13:47,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:47,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:47,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:47,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:47,676 INFO L87 Difference]: Start difference. First operand 2028 states and 2772 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:47,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:47,822 INFO L93 Difference]: Finished difference Result 4013 states and 5485 transitions. [2022-01-10 14:13:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:47,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:47,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:47,824 INFO L225 Difference]: With dead ends: 4013 [2022-01-10 14:13:47,824 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:47,827 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 14:13:47,828 INFO L933 BasicCegarLoop]: 2730 mSDtfsCounter, 2575 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:47,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2575 Valid, 2860 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:47,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:47,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:47,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.357847976307996) internal successors, (2751), 2027 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:47,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2751 transitions. [2022-01-10 14:13:47,980 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2751 transitions. Word has length 176 [2022-01-10 14:13:47,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:47,980 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2751 transitions. [2022-01-10 14:13:47,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:47,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2751 transitions. [2022-01-10 14:13:47,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:47,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:47,982 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:47,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-10 14:13:47,982 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:47,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:47,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1851917867, now seen corresponding path program 1 times [2022-01-10 14:13:47,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:47,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374745445] [2022-01-10 14:13:47,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:47,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:48,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:48,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:48,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374745445] [2022-01-10 14:13:48,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374745445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:48,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:48,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:48,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800432178] [2022-01-10 14:13:48,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:48,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:48,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:48,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:48,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:48,045 INFO L87 Difference]: Start difference. First operand 2028 states and 2751 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:48,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:48,190 INFO L93 Difference]: Finished difference Result 4012 states and 5442 transitions. [2022-01-10 14:13:48,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:48,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:48,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:48,193 INFO L225 Difference]: With dead ends: 4012 [2022-01-10 14:13:48,193 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:48,195 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 14:13:48,196 INFO L933 BasicCegarLoop]: 2709 mSDtfsCounter, 2554 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2554 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:48,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2554 Valid, 2838 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:48,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:48,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.3474827245804541) internal successors, (2730), 2027 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:48,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2730 transitions. [2022-01-10 14:13:48,308 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2730 transitions. Word has length 176 [2022-01-10 14:13:48,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:48,308 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2730 transitions. [2022-01-10 14:13:48,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:48,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2730 transitions. [2022-01-10 14:13:48,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:48,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:48,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:48,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-10 14:13:48,309 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:48,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:48,310 INFO L85 PathProgramCache]: Analyzing trace with hash 746206410, now seen corresponding path program 1 times [2022-01-10 14:13:48,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:48,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068838822] [2022-01-10 14:13:48,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:48,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:48,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:48,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:48,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068838822] [2022-01-10 14:13:48,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068838822] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:48,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:48,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:48,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959066615] [2022-01-10 14:13:48,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:48,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:48,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:48,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:48,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:48,348 INFO L87 Difference]: Start difference. First operand 2028 states and 2730 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:48,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:48,499 INFO L93 Difference]: Finished difference Result 4011 states and 5399 transitions. [2022-01-10 14:13:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:48,502 INFO L225 Difference]: With dead ends: 4011 [2022-01-10 14:13:48,502 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:48,505 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 14:13:48,506 INFO L933 BasicCegarLoop]: 2688 mSDtfsCounter, 2533 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2533 SdHoareTripleChecker+Valid, 2816 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:48,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2533 Valid, 2816 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:48,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:48,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:48,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.337117472852912) internal successors, (2709), 2027 states have internal predecessors, (2709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:48,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2709 transitions. [2022-01-10 14:13:48,621 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2709 transitions. Word has length 176 [2022-01-10 14:13:48,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:48,621 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2709 transitions. [2022-01-10 14:13:48,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:48,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2709 transitions. [2022-01-10 14:13:48,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:48,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:48,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:48,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-10 14:13:48,622 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:48,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:48,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1293900055, now seen corresponding path program 1 times [2022-01-10 14:13:48,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:48,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662184141] [2022-01-10 14:13:48,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:48,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:48,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:48,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662184141] [2022-01-10 14:13:48,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662184141] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:48,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:48,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:48,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972211760] [2022-01-10 14:13:48,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:48,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:48,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:48,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:48,662 INFO L87 Difference]: Start difference. First operand 2028 states and 2709 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:48,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:48,819 INFO L93 Difference]: Finished difference Result 4010 states and 5356 transitions. [2022-01-10 14:13:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:48,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:48,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:48,822 INFO L225 Difference]: With dead ends: 4010 [2022-01-10 14:13:48,822 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:48,824 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 14:13:48,825 INFO L933 BasicCegarLoop]: 2667 mSDtfsCounter, 2512 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2512 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:48,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2512 Valid, 2794 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:48,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:48,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.3267522211253702) internal successors, (2688), 2027 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:48,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2688 transitions. [2022-01-10 14:13:48,976 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2688 transitions. Word has length 176 [2022-01-10 14:13:48,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:48,976 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2688 transitions. [2022-01-10 14:13:48,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:48,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2688 transitions. [2022-01-10 14:13:48,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:48,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:48,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:48,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-10 14:13:48,977 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:48,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:48,978 INFO L85 PathProgramCache]: Analyzing trace with hash 766686216, now seen corresponding path program 1 times [2022-01-10 14:13:48,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:48,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096352282] [2022-01-10 14:13:48,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:48,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:49,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:49,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:49,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096352282] [2022-01-10 14:13:49,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096352282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:49,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:49,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:49,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498368029] [2022-01-10 14:13:49,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:49,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:49,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:49,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:49,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:49,011 INFO L87 Difference]: Start difference. First operand 2028 states and 2688 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:49,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:49,164 INFO L93 Difference]: Finished difference Result 4009 states and 5313 transitions. [2022-01-10 14:13:49,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:49,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:49,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:49,166 INFO L225 Difference]: With dead ends: 4009 [2022-01-10 14:13:49,166 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:49,168 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 14:13:49,168 INFO L933 BasicCegarLoop]: 2646 mSDtfsCounter, 2491 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2491 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:49,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2491 Valid, 2772 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:49,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:49,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:49,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.3163869693978283) internal successors, (2667), 2027 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:49,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2667 transitions. [2022-01-10 14:13:49,279 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2667 transitions. Word has length 176 [2022-01-10 14:13:49,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:49,279 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2667 transitions. [2022-01-10 14:13:49,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2667 transitions. [2022-01-10 14:13:49,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:49,280 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:49,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:49,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-10 14:13:49,280 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:49,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:49,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1879504039, now seen corresponding path program 1 times [2022-01-10 14:13:49,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:49,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93050839] [2022-01-10 14:13:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:49,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:49,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:49,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:49,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93050839] [2022-01-10 14:13:49,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93050839] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:49,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:49,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:49,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056900355] [2022-01-10 14:13:49,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:49,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:49,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:49,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:49,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:49,311 INFO L87 Difference]: Start difference. First operand 2028 states and 2667 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:49,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:49,461 INFO L93 Difference]: Finished difference Result 4008 states and 5270 transitions. [2022-01-10 14:13:49,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:49,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:49,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:49,463 INFO L225 Difference]: With dead ends: 4008 [2022-01-10 14:13:49,463 INFO L226 Difference]: Without dead ends: 2028 [2022-01-10 14:13:49,465 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 14:13:49,465 INFO L933 BasicCegarLoop]: 2625 mSDtfsCounter, 2470 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 2750 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:49,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2470 Valid, 2750 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:49,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-01-10 14:13:49,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-01-10 14:13:49,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2026 states have (on average 1.3060217176702862) internal successors, (2646), 2027 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:49,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2646 transitions. [2022-01-10 14:13:49,579 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2646 transitions. Word has length 176 [2022-01-10 14:13:49,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:49,580 INFO L470 AbstractCegarLoop]: Abstraction has 2028 states and 2646 transitions. [2022-01-10 14:13:49,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:49,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2646 transitions. [2022-01-10 14:13:49,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:49,580 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:49,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:49,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-10 14:13:49,581 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:49,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:49,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1468620730, now seen corresponding path program 1 times [2022-01-10 14:13:49,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:49,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073355972] [2022-01-10 14:13:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:49,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:49,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:49,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073355972] [2022-01-10 14:13:49,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073355972] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:49,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:49,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:13:49,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180588155] [2022-01-10 14:13:49,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:49,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:13:49,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:49,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:13:49,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:13:49,633 INFO L87 Difference]: Start difference. First operand 2028 states and 2646 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:49,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:49,925 INFO L93 Difference]: Finished difference Result 4530 states and 5956 transitions. [2022-01-10 14:13:49,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:13:49,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:49,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:49,927 INFO L225 Difference]: With dead ends: 4530 [2022-01-10 14:13:49,927 INFO L226 Difference]: Without dead ends: 2557 [2022-01-10 14:13:49,929 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 14:13:49,929 INFO L933 BasicCegarLoop]: 2701 mSDtfsCounter, 7620 mSDsluCounter, 1437 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7620 SdHoareTripleChecker+Valid, 4138 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:49,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7620 Valid, 4138 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:13:49,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-01-10 14:13:50,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2031. [2022-01-10 14:13:50,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2029 states have (on average 1.2976835879743716) internal successors, (2633), 2030 states have internal predecessors, (2633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:50,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2633 transitions. [2022-01-10 14:13:50,078 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2633 transitions. Word has length 176 [2022-01-10 14:13:50,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:50,078 INFO L470 AbstractCegarLoop]: Abstraction has 2031 states and 2633 transitions. [2022-01-10 14:13:50,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:50,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2633 transitions. [2022-01-10 14:13:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:50,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:50,079 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:50,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-10 14:13:50,079 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:50,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:50,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1037703929, now seen corresponding path program 1 times [2022-01-10 14:13:50,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:50,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449371876] [2022-01-10 14:13:50,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:50,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:50,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:50,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449371876] [2022-01-10 14:13:50,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449371876] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:50,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:50,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:13:50,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857995123] [2022-01-10 14:13:50,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:50,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:13:50,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:50,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:13:50,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:13:50,122 INFO L87 Difference]: Start difference. First operand 2031 states and 2633 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:50,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:50,447 INFO L93 Difference]: Finished difference Result 4707 states and 6138 transitions. [2022-01-10 14:13:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:13:50,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:50,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:50,450 INFO L225 Difference]: With dead ends: 4707 [2022-01-10 14:13:50,451 INFO L226 Difference]: Without dead ends: 2745 [2022-01-10 14:13:50,453 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 14:13:50,453 INFO L933 BasicCegarLoop]: 2768 mSDtfsCounter, 7246 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7246 SdHoareTripleChecker+Valid, 5689 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:50,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7246 Valid, 5689 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:13:50,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2022-01-10 14:13:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 2034. [2022-01-10 14:13:50,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2034 states, 2032 states have (on average 1.2893700787401574) internal successors, (2620), 2033 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 2620 transitions. [2022-01-10 14:13:50,609 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 2620 transitions. Word has length 176 [2022-01-10 14:13:50,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:50,610 INFO L470 AbstractCegarLoop]: Abstraction has 2034 states and 2620 transitions. [2022-01-10 14:13:50,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 2620 transitions. [2022-01-10 14:13:50,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:50,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:50,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:50,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-10 14:13:50,611 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:50,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1861385400, now seen corresponding path program 1 times [2022-01-10 14:13:50,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:50,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338601171] [2022-01-10 14:13:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:50,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:50,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:50,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:50,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338601171] [2022-01-10 14:13:50,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338601171] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:50,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:50,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:13:50,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396191030] [2022-01-10 14:13:50,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:50,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:13:50,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:50,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:13:50,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:13:50,657 INFO L87 Difference]: Start difference. First operand 2034 states and 2620 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:51,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:51,044 INFO L93 Difference]: Finished difference Result 4800 states and 6211 transitions. [2022-01-10 14:13:51,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:13:51,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:51,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:51,047 INFO L225 Difference]: With dead ends: 4800 [2022-01-10 14:13:51,047 INFO L226 Difference]: Without dead ends: 2842 [2022-01-10 14:13:51,049 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 14:13:51,049 INFO L933 BasicCegarLoop]: 2734 mSDtfsCounter, 7044 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7044 SdHoareTripleChecker+Valid, 6008 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:51,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7044 Valid, 6008 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:13:51,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2022-01-10 14:13:51,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2037. [2022-01-10 14:13:51,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2037 states, 2035 states have (on average 1.281081081081081) internal successors, (2607), 2036 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:51,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2037 states to 2037 states and 2607 transitions. [2022-01-10 14:13:51,233 INFO L78 Accepts]: Start accepts. Automaton has 2037 states and 2607 transitions. Word has length 176 [2022-01-10 14:13:51,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:51,234 INFO L470 AbstractCegarLoop]: Abstraction has 2037 states and 2607 transitions. [2022-01-10 14:13:51,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:51,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2037 states and 2607 transitions. [2022-01-10 14:13:51,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:51,235 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:51,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:51,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-10 14:13:51,235 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:51,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:51,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1802164663, now seen corresponding path program 1 times [2022-01-10 14:13:51,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:51,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613524456] [2022-01-10 14:13:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:51,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:51,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:51,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:51,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613524456] [2022-01-10 14:13:51,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613524456] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:51,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:51,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:13:51,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606798677] [2022-01-10 14:13:51,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:51,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:13:51,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:51,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:13:51,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:13:51,281 INFO L87 Difference]: Start difference. First operand 2037 states and 2607 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:51,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:51,700 INFO L93 Difference]: Finished difference Result 5313 states and 6829 transitions. [2022-01-10 14:13:51,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:13:51,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:51,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:51,704 INFO L225 Difference]: With dead ends: 5313 [2022-01-10 14:13:51,705 INFO L226 Difference]: Without dead ends: 3394 [2022-01-10 14:13:51,707 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 14:13:51,707 INFO L933 BasicCegarLoop]: 2610 mSDtfsCounter, 5982 mSDsluCounter, 5622 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5982 SdHoareTripleChecker+Valid, 8232 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:51,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5982 Valid, 8232 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:13:51,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2022-01-10 14:13:51,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 2040. [2022-01-10 14:13:51,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2040 states, 2038 states have (on average 1.2728164867517173) internal successors, (2594), 2039 states have internal predecessors, (2594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:51,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2040 states to 2040 states and 2594 transitions. [2022-01-10 14:13:51,925 INFO L78 Accepts]: Start accepts. Automaton has 2040 states and 2594 transitions. Word has length 176 [2022-01-10 14:13:51,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:51,925 INFO L470 AbstractCegarLoop]: Abstraction has 2040 states and 2594 transitions. [2022-01-10 14:13:51,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:51,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2040 states and 2594 transitions. [2022-01-10 14:13:51,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:51,926 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:51,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:51,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-10 14:13:51,926 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:51,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:51,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2048477750, now seen corresponding path program 1 times [2022-01-10 14:13:51,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:51,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258656156] [2022-01-10 14:13:51,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:51,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:51,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:51,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:51,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258656156] [2022-01-10 14:13:51,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258656156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:51,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:51,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 14:13:51,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889340474] [2022-01-10 14:13:51,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:51,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 14:13:51,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:51,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 14:13:51,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 14:13:51,977 INFO L87 Difference]: Start difference. First operand 2040 states and 2594 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:52,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:52,476 INFO L93 Difference]: Finished difference Result 5658 states and 7229 transitions. [2022-01-10 14:13:52,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 14:13:52,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:52,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:52,481 INFO L225 Difference]: With dead ends: 5658 [2022-01-10 14:13:52,481 INFO L226 Difference]: Without dead ends: 3764 [2022-01-10 14:13:52,483 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 14:13:52,483 INFO L933 BasicCegarLoop]: 2522 mSDtfsCounter, 5264 mSDsluCounter, 7172 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5264 SdHoareTripleChecker+Valid, 9694 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:52,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5264 Valid, 9694 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 14:13:52,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2022-01-10 14:13:52,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 2043. [2022-01-10 14:13:52,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 2041 states have (on average 1.264576188143067) internal successors, (2581), 2042 states have internal predecessors, (2581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:52,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2581 transitions. [2022-01-10 14:13:52,696 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2581 transitions. Word has length 176 [2022-01-10 14:13:52,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:52,696 INFO L470 AbstractCegarLoop]: Abstraction has 2043 states and 2581 transitions. [2022-01-10 14:13:52,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:52,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2581 transitions. [2022-01-10 14:13:52,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:52,697 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:52,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:52,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-10 14:13:52,697 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:52,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:52,697 INFO L85 PathProgramCache]: Analyzing trace with hash 545749067, now seen corresponding path program 1 times [2022-01-10 14:13:52,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:52,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828515520] [2022-01-10 14:13:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:52,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:52,735 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 14:13:52,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:52,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828515520] [2022-01-10 14:13:52,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828515520] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:52,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:52,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:52,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646748734] [2022-01-10 14:13:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:52,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:52,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:52,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:52,736 INFO L87 Difference]: Start difference. First operand 2043 states and 2581 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:53,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:53,149 INFO L93 Difference]: Finished difference Result 5832 states and 7368 transitions. [2022-01-10 14:13:53,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:53,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:53,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:53,155 INFO L225 Difference]: With dead ends: 5832 [2022-01-10 14:13:53,155 INFO L226 Difference]: Without dead ends: 3810 [2022-01-10 14:13:53,157 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 14:13:53,157 INFO L933 BasicCegarLoop]: 2560 mSDtfsCounter, 2304 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 4903 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:53,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2304 Valid, 4903 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:53,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2022-01-10 14:13:53,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3806. [2022-01-10 14:13:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3804 states have (on average 1.2660357518401681) internal successors, (4816), 3805 states have internal predecessors, (4816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:53,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 4816 transitions. [2022-01-10 14:13:53,543 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 4816 transitions. Word has length 176 [2022-01-10 14:13:53,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:53,543 INFO L470 AbstractCegarLoop]: Abstraction has 3806 states and 4816 transitions. [2022-01-10 14:13:53,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:53,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 4816 transitions. [2022-01-10 14:13:53,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:53,544 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:53,544 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:53,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-10 14:13:53,544 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:53,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:53,544 INFO L85 PathProgramCache]: Analyzing trace with hash 97052428, now seen corresponding path program 1 times [2022-01-10 14:13:53,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:53,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339227525] [2022-01-10 14:13:53,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:53,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:53,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:53,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339227525] [2022-01-10 14:13:53,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339227525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:53,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:53,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:53,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829018373] [2022-01-10 14:13:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:53,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:53,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:53,586 INFO L87 Difference]: Start difference. First operand 3806 states and 4816 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:54,025 INFO L93 Difference]: Finished difference Result 7580 states and 9586 transitions. [2022-01-10 14:13:54,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:54,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:54,029 INFO L225 Difference]: With dead ends: 7580 [2022-01-10 14:13:54,029 INFO L226 Difference]: Without dead ends: 3806 [2022-01-10 14:13:54,031 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 14:13:54,031 INFO L933 BasicCegarLoop]: 2554 mSDtfsCounter, 2415 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 2554 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 14:13:54,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2415 Valid, 2554 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:54,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-01-10 14:13:54,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3806. [2022-01-10 14:13:54,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 3804 states have (on average 1.2639327024185067) internal successors, (4808), 3805 states have internal predecessors, (4808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:54,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 4808 transitions. [2022-01-10 14:13:54,417 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 4808 transitions. Word has length 176 [2022-01-10 14:13:54,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:54,417 INFO L470 AbstractCegarLoop]: Abstraction has 3806 states and 4808 transitions. [2022-01-10 14:13:54,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:54,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 4808 transitions. [2022-01-10 14:13:54,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-10 14:13:54,418 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:54,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:54,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-10 14:13:54,418 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:54,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:54,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1913051413, now seen corresponding path program 1 times [2022-01-10 14:13:54,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:54,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310705558] [2022-01-10 14:13:54,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:54,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:54,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:54,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:54,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310705558] [2022-01-10 14:13:54,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310705558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:54,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:54,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 14:13:54,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439937900] [2022-01-10 14:13:54,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:54,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:54,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:54,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:54,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:54,459 INFO L87 Difference]: Start difference. First operand 3806 states and 4808 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:55,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:55,378 INFO L93 Difference]: Finished difference Result 11134 states and 14074 transitions. [2022-01-10 14:13:55,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:55,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2022-01-10 14:13:55,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:55,387 INFO L225 Difference]: With dead ends: 11134 [2022-01-10 14:13:55,387 INFO L226 Difference]: Without dead ends: 7378 [2022-01-10 14:13:55,390 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 14:13:55,390 INFO L933 BasicCegarLoop]: 2539 mSDtfsCounter, 2332 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 4849 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:55,391 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2332 Valid, 4849 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:55,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7378 states. [2022-01-10 14:13:56,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7378 to 7184. [2022-01-10 14:13:56,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7184 states, 7182 states have (on average 1.2609301030353661) internal successors, (9056), 7183 states have internal predecessors, (9056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:56,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7184 states to 7184 states and 9056 transitions. [2022-01-10 14:13:56,178 INFO L78 Accepts]: Start accepts. Automaton has 7184 states and 9056 transitions. Word has length 176 [2022-01-10 14:13:56,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:56,178 INFO L470 AbstractCegarLoop]: Abstraction has 7184 states and 9056 transitions. [2022-01-10 14:13:56,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:56,178 INFO L276 IsEmpty]: Start isEmpty. Operand 7184 states and 9056 transitions. [2022-01-10 14:13:56,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 14:13:56,181 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:56,181 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:56,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-10 14:13:56,181 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:56,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:56,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1962993149, now seen corresponding path program 1 times [2022-01-10 14:13:56,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:56,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170341001] [2022-01-10 14:13:56,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:56,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:56,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:56,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:56,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170341001] [2022-01-10 14:13:56,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170341001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:56,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:56,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:56,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834523157] [2022-01-10 14:13:56,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:56,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:56,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:56,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:56,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:56,233 INFO L87 Difference]: Start difference. First operand 7184 states and 9056 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:57,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:13:57,789 INFO L93 Difference]: Finished difference Result 21222 states and 26781 transitions. [2022-01-10 14:13:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:13:57,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2022-01-10 14:13:57,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:13:57,805 INFO L225 Difference]: With dead ends: 21222 [2022-01-10 14:13:57,805 INFO L226 Difference]: Without dead ends: 14094 [2022-01-10 14:13:57,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:57,812 INFO L933 BasicCegarLoop]: 2536 mSDtfsCounter, 2382 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 4846 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:13:57,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2382 Valid, 4846 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:13:57,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14094 states. [2022-01-10 14:13:59,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14094 to 13710. [2022-01-10 14:13:59,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13710 states, 13708 states have (on average 1.2591187627662679) internal successors, (17260), 13709 states have internal predecessors, (17260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13710 states to 13710 states and 17260 transitions. [2022-01-10 14:13:59,413 INFO L78 Accepts]: Start accepts. Automaton has 13710 states and 17260 transitions. Word has length 286 [2022-01-10 14:13:59,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:13:59,413 INFO L470 AbstractCegarLoop]: Abstraction has 13710 states and 17260 transitions. [2022-01-10 14:13:59,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:13:59,413 INFO L276 IsEmpty]: Start isEmpty. Operand 13710 states and 17260 transitions. [2022-01-10 14:13:59,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 14:13:59,420 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:13:59,420 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:13:59,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-10 14:13:59,421 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:13:59,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:13:59,422 INFO L85 PathProgramCache]: Analyzing trace with hash -514478398, now seen corresponding path program 1 times [2022-01-10 14:13:59,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:13:59,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136576015] [2022-01-10 14:13:59,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:13:59,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:13:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:13:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:13:59,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:13:59,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136576015] [2022-01-10 14:13:59,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136576015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:13:59,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:13:59,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:13:59,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030096266] [2022-01-10 14:13:59,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:13:59,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:13:59,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:13:59,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:13:59,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:13:59,480 INFO L87 Difference]: Start difference. First operand 13710 states and 17260 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:14:02,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:14:02,557 INFO L93 Difference]: Finished difference Result 40579 states and 50875 transitions. [2022-01-10 14:14:02,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:14:02,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2022-01-10 14:14:02,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:14:02,597 INFO L225 Difference]: With dead ends: 40579 [2022-01-10 14:14:02,597 INFO L226 Difference]: Without dead ends: 27043 [2022-01-10 14:14:02,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:14:02,612 INFO L933 BasicCegarLoop]: 2917 mSDtfsCounter, 2361 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:14:02,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2361 Valid, 5435 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:14:02,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27043 states. [2022-01-10 14:14:05,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27043 to 26675. [2022-01-10 14:14:05,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26675 states, 26673 states have (on average 1.249840662842575) internal successors, (33337), 26674 states have internal predecessors, (33337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:14:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26675 states to 26675 states and 33337 transitions. [2022-01-10 14:14:05,753 INFO L78 Accepts]: Start accepts. Automaton has 26675 states and 33337 transitions. Word has length 286 [2022-01-10 14:14:05,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:14:05,753 INFO L470 AbstractCegarLoop]: Abstraction has 26675 states and 33337 transitions. [2022-01-10 14:14:05,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:14:05,754 INFO L276 IsEmpty]: Start isEmpty. Operand 26675 states and 33337 transitions. [2022-01-10 14:14:05,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-10 14:14:05,764 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:14:05,764 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:05,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-10 14:14:05,764 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:14:05,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:14:05,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1517956893, now seen corresponding path program 1 times [2022-01-10 14:14:05,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:14:05,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849805269] [2022-01-10 14:14:05,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:14:05,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:14:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:14:05,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 14:14:05,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:14:05,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849805269] [2022-01-10 14:14:05,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849805269] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:14:05,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:14:05,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:14:05,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115296322] [2022-01-10 14:14:05,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:14:05,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:14:05,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:14:05,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:14:05,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:14:05,814 INFO L87 Difference]: Start difference. First operand 26675 states and 33337 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:14:09,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:14:09,073 INFO L93 Difference]: Finished difference Result 53123 states and 66401 transitions. [2022-01-10 14:14:09,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:14:09,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2022-01-10 14:14:09,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:14:09,106 INFO L225 Difference]: With dead ends: 53123 [2022-01-10 14:14:09,106 INFO L226 Difference]: Without dead ends: 26508 [2022-01-10 14:14:09,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:14:09,125 INFO L933 BasicCegarLoop]: 2553 mSDtfsCounter, 2548 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2548 SdHoareTripleChecker+Valid, 2554 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 14:14:09,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2548 Valid, 2554 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:14:09,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26508 states. [2022-01-10 14:14:12,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26508 to 26508. [2022-01-10 14:14:12,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26508 states, 26506 states have (on average 1.2501697728816117) internal successors, (33137), 26507 states have internal predecessors, (33137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:14:12,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26508 states to 26508 states and 33137 transitions. [2022-01-10 14:14:12,306 INFO L78 Accepts]: Start accepts. Automaton has 26508 states and 33137 transitions. Word has length 286 [2022-01-10 14:14:12,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:14:12,306 INFO L470 AbstractCegarLoop]: Abstraction has 26508 states and 33137 transitions. [2022-01-10 14:14:12,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:14:12,307 INFO L276 IsEmpty]: Start isEmpty. Operand 26508 states and 33137 transitions. [2022-01-10 14:14:12,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-01-10 14:14:12,316 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:14:12,316 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:12,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-10 14:14:12,317 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:14:12,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:14:12,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1209792325, now seen corresponding path program 1 times [2022-01-10 14:14:12,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:14:12,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034200684] [2022-01-10 14:14:12,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:14:12,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:14:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:14:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:14:12,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:14:12,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034200684] [2022-01-10 14:14:12,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034200684] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:14:12,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:14:12,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:14:12,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836732114] [2022-01-10 14:14:12,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:14:12,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:14:12,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:14:12,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:14:12,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:14:12,376 INFO L87 Difference]: Start difference. First operand 26508 states and 33137 transitions. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:14:18,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 14:14:18,473 INFO L93 Difference]: Finished difference Result 77184 states and 96309 transitions. [2022-01-10 14:14:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 14:14:18,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 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 287 [2022-01-10 14:14:18,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 14:14:18,551 INFO L225 Difference]: With dead ends: 77184 [2022-01-10 14:14:18,551 INFO L226 Difference]: Without dead ends: 50850 [2022-01-10 14:14:18,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:14:18,571 INFO L933 BasicCegarLoop]: 2550 mSDtfsCounter, 2093 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 4885 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 14:14:18,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2093 Valid, 4885 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 14:14:18,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50850 states. [2022-01-10 14:14:24,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50850 to 50846. [2022-01-10 14:14:24,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50846 states, 50844 states have (on average 1.245712375108174) internal successors, (63337), 50845 states have internal predecessors, (63337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:14:24,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50846 states to 50846 states and 63337 transitions. [2022-01-10 14:14:24,754 INFO L78 Accepts]: Start accepts. Automaton has 50846 states and 63337 transitions. Word has length 287 [2022-01-10 14:14:24,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 14:14:24,754 INFO L470 AbstractCegarLoop]: Abstraction has 50846 states and 63337 transitions. [2022-01-10 14:14:24,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 14:14:24,755 INFO L276 IsEmpty]: Start isEmpty. Operand 50846 states and 63337 transitions. [2022-01-10 14:14:24,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-01-10 14:14:24,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 14:14:24,773 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:24,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-10 14:14:24,774 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-10 14:14:24,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 14:14:24,774 INFO L85 PathProgramCache]: Analyzing trace with hash 88002389, now seen corresponding path program 1 times [2022-01-10 14:14:24,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 14:14:24,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986691733] [2022-01-10 14:14:24,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 14:14:24,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 14:14:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 14:14:24,833 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 14:14:24,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 14:14:24,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986691733] [2022-01-10 14:14:24,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986691733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 14:14:24,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 14:14:24,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 14:14:24,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37259404] [2022-01-10 14:14:24,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 14:14:24,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 14:14:24,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 14:14:24,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 14:14:24,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 14:14:24,835 INFO L87 Difference]: Start difference. First operand 50846 states and 63337 transitions. Second operand has 3 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)