/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.09.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 19:36:57,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 19:36:57,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 19:36:57,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 19:36:57,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 19:36:57,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 19:36:57,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 19:36:57,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 19:36:57,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 19:36:57,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 19:36:57,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 19:36:57,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 19:36:57,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 19:36:57,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 19:36:57,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 19:36:57,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 19:36:57,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 19:36:57,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 19:36:57,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 19:36:57,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 19:36:57,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 19:36:57,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 19:36:57,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 19:36:57,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 19:36:57,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 19:36:57,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 19:36:57,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 19:36:57,533 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 19:36:57,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 19:36:57,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 19:36:57,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 19:36:57,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 19:36:57,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 19:36:57,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 19:36:57,534 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 19:36:57,534 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 19:36:57,534 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 19:36:57,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 19:36:57,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 19:36:57,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 19:36:57,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 19:36:57,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 19:36:57,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:36:57,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 19:36:57,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 19:36:57,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 19:36:57,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 19:36:57,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 19:36:57,539 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 19:36:57,540 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 19:36:57,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 19:36:57,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 19:36:57,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 19:36:57,541 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 19:36:57,541 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 19:36:57,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 19:36:57,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 19:36:57,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 19:36:57,762 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 19:36:57,766 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 19:36:57,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.09.cil-2.c [2022-01-10 19:36:57,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abcef637f/05d2ea01756b470c80633f9fc6aa4458/FLAG879462163 [2022-01-10 19:36:58,656 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 19:36:58,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.09.cil-2.c [2022-01-10 19:36:58,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abcef637f/05d2ea01756b470c80633f9fc6aa4458/FLAG879462163 [2022-01-10 19:36:59,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abcef637f/05d2ea01756b470c80633f9fc6aa4458 [2022-01-10 19:36:59,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 19:36:59,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 19:36:59,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 19:36:59,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 19:36:59,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 19:36:59,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:36:59" (1/1) ... [2022-01-10 19:36:59,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b0c1543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:36:59, skipping insertion in model container [2022-01-10 19:36:59,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 07:36:59" (1/1) ... [2022-01-10 19:36:59,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 19:36:59,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 19:37:00,915 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/Problem05_label49+token_ring.09.cil-2.c[380593,380606] [2022-01-10 19:37:00,938 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/Problem05_label49+token_ring.09.cil-2.c[383339,383352] [2022-01-10 19:37:01,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:37:01,137 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 19:37:01,963 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/Problem05_label49+token_ring.09.cil-2.c[380593,380606] [2022-01-10 19:37:01,968 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/Problem05_label49+token_ring.09.cil-2.c[383339,383352] [2022-01-10 19:37:01,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 19:37:02,052 INFO L208 MainTranslator]: Completed translation [2022-01-10 19:37:02,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02 WrapperNode [2022-01-10 19:37:02,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 19:37:02,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 19:37:02,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 19:37:02,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 19:37:02,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:02,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:02,426 INFO L137 Inliner]: procedures = 63, calls = 69, calls flagged for inlining = 64, calls inlined = 193, statements flattened = 15104 [2022-01-10 19:37:02,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 19:37:02,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 19:37:02,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 19:37:02,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 19:37:02,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:02,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:02,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:02,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:02,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:02,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:03,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:03,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 19:37:03,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 19:37:03,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 19:37:03,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 19:37:03,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (1/1) ... [2022-01-10 19:37:03,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 19:37:03,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 19:37:03,157 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 19:37:03,164 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 19:37:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 19:37:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 19:37:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 19:37:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 19:37:03,351 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 19:37:03,352 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 19:37:11,889 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 19:37:11,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 19:37:11,920 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2022-01-10 19:37:11,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:37:11 BoogieIcfgContainer [2022-01-10 19:37:11,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 19:37:11,925 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 19:37:11,926 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 19:37:11,927 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 19:37:11,929 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:37:11" (1/1) ... [2022-01-10 19:37:13,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:37:13 BasicIcfg [2022-01-10 19:37:13,712 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 19:37:13,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 19:37:13,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 19:37:13,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 19:37:13,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 07:36:59" (1/4) ... [2022-01-10 19:37:13,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4aad7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:37:13, skipping insertion in model container [2022-01-10 19:37:13,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 07:37:02" (2/4) ... [2022-01-10 19:37:13,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4aad7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 07:37:13, skipping insertion in model container [2022-01-10 19:37:13,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 07:37:11" (3/4) ... [2022-01-10 19:37:13,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4aad7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 07:37:13, skipping insertion in model container [2022-01-10 19:37:13,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 07:37:13" (4/4) ... [2022-01-10 19:37:13,718 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.09.cil-2.cTransformedIcfg [2022-01-10 19:37:13,722 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 19:37:13,722 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 19:37:13,779 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 19:37:13,790 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 19:37:13,790 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 19:37:13,845 INFO L276 IsEmpty]: Start isEmpty. Operand has 3368 states, 3364 states have (on average 1.7455410225921522) internal successors, (5872), 3367 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 19:37:13,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:13,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:13,867 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] [2022-01-10 19:37:13,868 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:13,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:13,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1086950077, now seen corresponding path program 1 times [2022-01-10 19:37:13,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:13,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155088946] [2022-01-10 19:37:13,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:13,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:14,217 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 19:37:14,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:14,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155088946] [2022-01-10 19:37:14,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155088946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:14,219 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:14,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:14,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602018205] [2022-01-10 19:37:14,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:14,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:14,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:14,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:14,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:14,256 INFO L87 Difference]: Start difference. First operand has 3368 states, 3364 states have (on average 1.7455410225921522) internal successors, (5872), 3367 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) Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:14,623 INFO L93 Difference]: Finished difference Result 7702 states and 13190 transitions. [2022-01-10 19:37:14,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:14,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:14,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:14,660 INFO L225 Difference]: With dead ends: 7702 [2022-01-10 19:37:14,660 INFO L226 Difference]: Without dead ends: 4280 [2022-01-10 19:37:14,673 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 19:37:14,680 INFO L933 BasicCegarLoop]: 5814 mSDtfsCounter, 5657 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 7361 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:14,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5657 Valid, 7361 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:37:14,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2022-01-10 19:37:14,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4276. [2022-01-10 19:37:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6742335595600282) internal successors, (7154), 4275 states have internal predecessors, (7154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7154 transitions. [2022-01-10 19:37:14,846 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7154 transitions. Word has length 132 [2022-01-10 19:37:14,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:14,846 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7154 transitions. [2022-01-10 19:37:14,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:14,847 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7154 transitions. [2022-01-10 19:37:14,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:14,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:14,849 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] [2022-01-10 19:37:14,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 19:37:14,849 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:14,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:14,850 INFO L85 PathProgramCache]: Analyzing trace with hash 498625757, now seen corresponding path program 1 times [2022-01-10 19:37:14,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:14,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999426356] [2022-01-10 19:37:14,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:14,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:14,948 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 19:37:14,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:14,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999426356] [2022-01-10 19:37:14,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999426356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:14,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:14,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:14,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110778303] [2022-01-10 19:37:14,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:14,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:14,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:14,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:14,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:14,951 INFO L87 Difference]: Start difference. First operand 4276 states and 7154 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:15,052 INFO L93 Difference]: Finished difference Result 6413 states and 10320 transitions. [2022-01-10 19:37:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:15,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:15,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:15,070 INFO L225 Difference]: With dead ends: 6413 [2022-01-10 19:37:15,070 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:15,075 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 19:37:15,077 INFO L933 BasicCegarLoop]: 5702 mSDtfsCounter, 5689 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5689 SdHoareTripleChecker+Valid, 5702 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 19:37:15,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5689 Valid, 5702 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:15,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:15,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:15,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6723613386379592) internal successors, (7146), 4275 states have internal predecessors, (7146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:15,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7146 transitions. [2022-01-10 19:37:15,192 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7146 transitions. Word has length 132 [2022-01-10 19:37:15,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:15,194 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7146 transitions. [2022-01-10 19:37:15,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:15,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7146 transitions. [2022-01-10 19:37:15,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:15,195 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:15,196 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] [2022-01-10 19:37:15,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 19:37:15,196 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:15,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:15,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1463375613, now seen corresponding path program 1 times [2022-01-10 19:37:15,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:15,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335296010] [2022-01-10 19:37:15,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:15,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:15,435 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 19:37:15,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:15,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335296010] [2022-01-10 19:37:15,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335296010] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:15,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:15,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:15,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558947203] [2022-01-10 19:37:15,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:15,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:15,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:15,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:15,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:15,438 INFO L87 Difference]: Start difference. First operand 4276 states and 7146 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:15,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:15,547 INFO L93 Difference]: Finished difference Result 6412 states and 10303 transitions. [2022-01-10 19:37:15,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:15,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:15,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:15,564 INFO L225 Difference]: With dead ends: 6412 [2022-01-10 19:37:15,565 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:15,574 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 19:37:15,577 INFO L933 BasicCegarLoop]: 5697 mSDtfsCounter, 5683 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5683 SdHoareTripleChecker+Valid, 5697 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 19:37:15,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5683 Valid, 5697 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:15,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:15,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:15,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6704891177158905) internal successors, (7138), 4275 states have internal predecessors, (7138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:15,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7138 transitions. [2022-01-10 19:37:15,695 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7138 transitions. Word has length 132 [2022-01-10 19:37:15,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:15,696 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7138 transitions. [2022-01-10 19:37:15,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:15,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7138 transitions. [2022-01-10 19:37:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:15,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:15,701 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] [2022-01-10 19:37:15,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 19:37:15,701 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:15,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:15,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1830639395, now seen corresponding path program 1 times [2022-01-10 19:37:15,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:15,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318461023] [2022-01-10 19:37:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:15,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:15,784 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 19:37:15,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:15,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318461023] [2022-01-10 19:37:15,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318461023] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:15,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:15,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:15,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710912228] [2022-01-10 19:37:15,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:15,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:15,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:15,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:15,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:15,788 INFO L87 Difference]: Start difference. First operand 4276 states and 7138 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:15,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:15,899 INFO L93 Difference]: Finished difference Result 6411 states and 10286 transitions. [2022-01-10 19:37:15,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:15,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:15,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:15,916 INFO L225 Difference]: With dead ends: 6411 [2022-01-10 19:37:15,917 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:15,923 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 19:37:15,929 INFO L933 BasicCegarLoop]: 5692 mSDtfsCounter, 5677 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5677 SdHoareTripleChecker+Valid, 5692 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 19:37:15,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5677 Valid, 5692 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:16,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:16,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6686168967938217) internal successors, (7130), 4275 states have internal predecessors, (7130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:16,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7130 transitions. [2022-01-10 19:37:16,076 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7130 transitions. Word has length 132 [2022-01-10 19:37:16,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:16,076 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7130 transitions. [2022-01-10 19:37:16,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7130 transitions. [2022-01-10 19:37:16,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:16,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:16,079 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] [2022-01-10 19:37:16,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 19:37:16,079 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:16,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1244161283, now seen corresponding path program 1 times [2022-01-10 19:37:16,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:16,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389966375] [2022-01-10 19:37:16,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:16,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:16,152 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 19:37:16,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:16,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389966375] [2022-01-10 19:37:16,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389966375] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:16,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:16,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:16,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225436954] [2022-01-10 19:37:16,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:16,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:16,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:16,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:16,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:16,156 INFO L87 Difference]: Start difference. First operand 4276 states and 7130 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:16,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:16,274 INFO L93 Difference]: Finished difference Result 6409 states and 10267 transitions. [2022-01-10 19:37:16,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:16,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:16,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:16,291 INFO L225 Difference]: With dead ends: 6409 [2022-01-10 19:37:16,291 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:16,294 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 19:37:16,295 INFO L933 BasicCegarLoop]: 5687 mSDtfsCounter, 5670 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5670 SdHoareTripleChecker+Valid, 5687 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 19:37:16,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5670 Valid, 5687 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:16,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:16,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:16,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6667446758717528) internal successors, (7122), 4275 states have internal predecessors, (7122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7122 transitions. [2022-01-10 19:37:16,414 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7122 transitions. Word has length 132 [2022-01-10 19:37:16,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:16,414 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7122 transitions. [2022-01-10 19:37:16,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:16,414 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7122 transitions. [2022-01-10 19:37:16,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:16,416 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:16,416 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] [2022-01-10 19:37:16,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 19:37:16,416 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:16,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:16,417 INFO L85 PathProgramCache]: Analyzing trace with hash 530748701, now seen corresponding path program 1 times [2022-01-10 19:37:16,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:16,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414531163] [2022-01-10 19:37:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:16,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:16,478 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 19:37:16,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:16,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414531163] [2022-01-10 19:37:16,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414531163] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:16,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:16,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:16,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222992246] [2022-01-10 19:37:16,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:16,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:16,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:16,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:16,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:16,480 INFO L87 Difference]: Start difference. First operand 4276 states and 7122 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:16,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:16,651 INFO L93 Difference]: Finished difference Result 6408 states and 10250 transitions. [2022-01-10 19:37:16,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:16,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:16,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:16,669 INFO L225 Difference]: With dead ends: 6408 [2022-01-10 19:37:16,670 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:16,673 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 19:37:16,673 INFO L933 BasicCegarLoop]: 5682 mSDtfsCounter, 5664 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5664 SdHoareTripleChecker+Valid, 5682 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 19:37:16,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5664 Valid, 5682 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:16,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:16,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:16,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.664872454949684) internal successors, (7114), 4275 states have internal predecessors, (7114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7114 transitions. [2022-01-10 19:37:16,806 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7114 transitions. Word has length 132 [2022-01-10 19:37:16,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:16,806 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7114 transitions. [2022-01-10 19:37:16,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7114 transitions. [2022-01-10 19:37:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:16,808 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:16,808 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] [2022-01-10 19:37:16,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 19:37:16,809 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:16,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:16,809 INFO L85 PathProgramCache]: Analyzing trace with hash -243280131, now seen corresponding path program 1 times [2022-01-10 19:37:16,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:16,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966506466] [2022-01-10 19:37:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:16,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:16,865 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 19:37:16,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:16,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966506466] [2022-01-10 19:37:16,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966506466] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:16,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:16,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:16,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960957296] [2022-01-10 19:37:16,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:16,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:16,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:16,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:16,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:16,868 INFO L87 Difference]: Start difference. First operand 4276 states and 7114 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:16,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:16,980 INFO L93 Difference]: Finished difference Result 6407 states and 10233 transitions. [2022-01-10 19:37:16,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:16,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:16,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:16,992 INFO L225 Difference]: With dead ends: 6407 [2022-01-10 19:37:16,992 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:16,996 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 19:37:16,997 INFO L933 BasicCegarLoop]: 5677 mSDtfsCounter, 5658 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5658 SdHoareTripleChecker+Valid, 5677 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 19:37:16,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5658 Valid, 5677 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:17,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:17,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6630002340276153) internal successors, (7106), 4275 states have internal predecessors, (7106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:17,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7106 transitions. [2022-01-10 19:37:17,114 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7106 transitions. Word has length 132 [2022-01-10 19:37:17,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:17,115 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7106 transitions. [2022-01-10 19:37:17,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:17,115 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7106 transitions. [2022-01-10 19:37:17,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:17,116 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:17,117 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] [2022-01-10 19:37:17,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 19:37:17,117 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:17,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash -268248803, now seen corresponding path program 1 times [2022-01-10 19:37:17,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:17,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176978200] [2022-01-10 19:37:17,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:17,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:17,169 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 19:37:17,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:17,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176978200] [2022-01-10 19:37:17,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176978200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:17,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:17,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:17,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256668891] [2022-01-10 19:37:17,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:17,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:17,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:17,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:17,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:17,172 INFO L87 Difference]: Start difference. First operand 4276 states and 7106 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:17,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:17,281 INFO L93 Difference]: Finished difference Result 6406 states and 10216 transitions. [2022-01-10 19:37:17,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:17,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:17,290 INFO L225 Difference]: With dead ends: 6406 [2022-01-10 19:37:17,290 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:17,293 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 19:37:17,294 INFO L933 BasicCegarLoop]: 5672 mSDtfsCounter, 5652 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5652 SdHoareTripleChecker+Valid, 5672 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 19:37:17,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5652 Valid, 5672 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:17,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:17,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6611280131055464) internal successors, (7098), 4275 states have internal predecessors, (7098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:17,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7098 transitions. [2022-01-10 19:37:17,426 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7098 transitions. Word has length 132 [2022-01-10 19:37:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:17,427 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7098 transitions. [2022-01-10 19:37:17,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7098 transitions. [2022-01-10 19:37:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:17,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:17,429 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] [2022-01-10 19:37:17,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 19:37:17,429 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:17,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:17,429 INFO L85 PathProgramCache]: Analyzing trace with hash 839324413, now seen corresponding path program 1 times [2022-01-10 19:37:17,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:17,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573456589] [2022-01-10 19:37:17,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:17,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:17,474 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 19:37:17,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:17,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573456589] [2022-01-10 19:37:17,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573456589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:17,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:17,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:17,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740218504] [2022-01-10 19:37:17,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:17,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:17,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:17,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:17,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:17,477 INFO L87 Difference]: Start difference. First operand 4276 states and 7098 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:17,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:17,617 INFO L93 Difference]: Finished difference Result 6405 states and 10199 transitions. [2022-01-10 19:37:17,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:17,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:17,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:17,626 INFO L225 Difference]: With dead ends: 6405 [2022-01-10 19:37:17,626 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:17,631 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 19:37:17,633 INFO L933 BasicCegarLoop]: 5643 mSDtfsCounter, 5532 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5532 SdHoareTripleChecker+Valid, 5741 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:17,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5532 Valid, 5741 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:17,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:17,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:17,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6541071846477884) internal successors, (7068), 4275 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:17,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7068 transitions. [2022-01-10 19:37:17,747 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7068 transitions. Word has length 132 [2022-01-10 19:37:17,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:17,747 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7068 transitions. [2022-01-10 19:37:17,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:17,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7068 transitions. [2022-01-10 19:37:17,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:17,751 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:17,751 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] [2022-01-10 19:37:17,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 19:37:17,752 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:17,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:17,752 INFO L85 PathProgramCache]: Analyzing trace with hash -345324388, now seen corresponding path program 1 times [2022-01-10 19:37:17,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:17,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964394434] [2022-01-10 19:37:17,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:17,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:17,793 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 19:37:17,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:17,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964394434] [2022-01-10 19:37:17,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964394434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:17,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:17,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:17,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165092015] [2022-01-10 19:37:17,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:17,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:17,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:17,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:17,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:17,795 INFO L87 Difference]: Start difference. First operand 4276 states and 7068 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:17,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:17,924 INFO L93 Difference]: Finished difference Result 6404 states and 10138 transitions. [2022-01-10 19:37:17,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:17,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:17,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:17,933 INFO L225 Difference]: With dead ends: 6404 [2022-01-10 19:37:17,933 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:17,937 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 19:37:17,937 INFO L933 BasicCegarLoop]: 5626 mSDtfsCounter, 5515 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5515 SdHoareTripleChecker+Valid, 5723 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:17,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5515 Valid, 5723 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:18,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6470863561900304) internal successors, (7038), 4275 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7038 transitions. [2022-01-10 19:37:18,060 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7038 transitions. Word has length 132 [2022-01-10 19:37:18,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:18,060 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7038 transitions. [2022-01-10 19:37:18,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7038 transitions. [2022-01-10 19:37:18,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:18,062 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:18,062 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] [2022-01-10 19:37:18,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 19:37:18,062 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:18,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:18,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1733170885, now seen corresponding path program 1 times [2022-01-10 19:37:18,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:18,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890940028] [2022-01-10 19:37:18,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:18,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:18,113 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 19:37:18,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:18,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890940028] [2022-01-10 19:37:18,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890940028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:18,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:18,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:18,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197443404] [2022-01-10 19:37:18,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:18,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:18,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:18,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:18,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:18,115 INFO L87 Difference]: Start difference. First operand 4276 states and 7038 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:18,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:18,254 INFO L93 Difference]: Finished difference Result 6403 states and 10077 transitions. [2022-01-10 19:37:18,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:18,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:18,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:18,264 INFO L225 Difference]: With dead ends: 6403 [2022-01-10 19:37:18,264 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:18,269 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 19:37:18,269 INFO L933 BasicCegarLoop]: 5609 mSDtfsCounter, 5498 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5498 SdHoareTripleChecker+Valid, 5705 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:18,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5498 Valid, 5705 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:18,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:18,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:18,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6400655277322724) internal successors, (7008), 4275 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:18,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 7008 transitions. [2022-01-10 19:37:18,426 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 7008 transitions. Word has length 132 [2022-01-10 19:37:18,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:18,427 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 7008 transitions. [2022-01-10 19:37:18,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 7008 transitions. [2022-01-10 19:37:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:18,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:18,429 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] [2022-01-10 19:37:18,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 19:37:18,430 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:18,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:18,430 INFO L85 PathProgramCache]: Analyzing trace with hash 287943002, now seen corresponding path program 1 times [2022-01-10 19:37:18,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:18,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379987324] [2022-01-10 19:37:18,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:18,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:18,476 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 19:37:18,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:18,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379987324] [2022-01-10 19:37:18,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379987324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:18,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:18,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:18,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810639511] [2022-01-10 19:37:18,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:18,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:18,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:18,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:18,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:18,478 INFO L87 Difference]: Start difference. First operand 4276 states and 7008 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:18,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:18,704 INFO L93 Difference]: Finished difference Result 6402 states and 10016 transitions. [2022-01-10 19:37:18,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:18,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:18,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:18,715 INFO L225 Difference]: With dead ends: 6402 [2022-01-10 19:37:18,715 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:18,719 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 19:37:18,720 INFO L933 BasicCegarLoop]: 5592 mSDtfsCounter, 5481 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5481 SdHoareTripleChecker+Valid, 5687 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:18,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5481 Valid, 5687 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:18,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:18,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:18,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6330446992745145) internal successors, (6978), 4275 states have internal predecessors, (6978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6978 transitions. [2022-01-10 19:37:18,873 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6978 transitions. Word has length 132 [2022-01-10 19:37:18,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:18,873 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6978 transitions. [2022-01-10 19:37:18,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6978 transitions. [2022-01-10 19:37:18,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:18,875 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:18,875 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] [2022-01-10 19:37:18,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 19:37:18,876 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:18,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:18,876 INFO L85 PathProgramCache]: Analyzing trace with hash -619326662, now seen corresponding path program 1 times [2022-01-10 19:37:18,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:18,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394061555] [2022-01-10 19:37:18,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:18,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:18,920 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 19:37:18,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:18,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394061555] [2022-01-10 19:37:18,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394061555] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:18,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:18,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:18,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648836487] [2022-01-10 19:37:18,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:18,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:18,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:18,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:18,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:18,923 INFO L87 Difference]: Start difference. First operand 4276 states and 6978 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:19,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:19,114 INFO L93 Difference]: Finished difference Result 6401 states and 9955 transitions. [2022-01-10 19:37:19,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:19,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:19,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:19,124 INFO L225 Difference]: With dead ends: 6401 [2022-01-10 19:37:19,124 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:19,129 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 19:37:19,131 INFO L933 BasicCegarLoop]: 5575 mSDtfsCounter, 5464 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 5669 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:19,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5464 Valid, 5669 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:19,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:19,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6260238708167565) internal successors, (6948), 4275 states have internal predecessors, (6948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:19,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6948 transitions. [2022-01-10 19:37:19,290 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6948 transitions. Word has length 132 [2022-01-10 19:37:19,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:19,290 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6948 transitions. [2022-01-10 19:37:19,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:19,291 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6948 transitions. [2022-01-10 19:37:19,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:19,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:19,292 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] [2022-01-10 19:37:19,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 19:37:19,293 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:19,293 INFO L85 PathProgramCache]: Analyzing trace with hash 83452377, now seen corresponding path program 1 times [2022-01-10 19:37:19,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:19,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451735122] [2022-01-10 19:37:19,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:19,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 19:37:19,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:19,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451735122] [2022-01-10 19:37:19,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451735122] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:19,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:19,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:19,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073065642] [2022-01-10 19:37:19,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:19,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:19,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:19,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:19,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:19,346 INFO L87 Difference]: Start difference. First operand 4276 states and 6948 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:19,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:19,525 INFO L93 Difference]: Finished difference Result 6400 states and 9894 transitions. [2022-01-10 19:37:19,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:19,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:19,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:19,534 INFO L225 Difference]: With dead ends: 6400 [2022-01-10 19:37:19,534 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:19,539 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 19:37:19,539 INFO L933 BasicCegarLoop]: 5558 mSDtfsCounter, 5447 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5447 SdHoareTripleChecker+Valid, 5651 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:19,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5447 Valid, 5651 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:19,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:19,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:19,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6190030423589983) internal successors, (6918), 4275 states have internal predecessors, (6918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:19,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6918 transitions. [2022-01-10 19:37:19,706 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6918 transitions. Word has length 132 [2022-01-10 19:37:19,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:19,706 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6918 transitions. [2022-01-10 19:37:19,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:19,706 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6918 transitions. [2022-01-10 19:37:19,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:19,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:19,708 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] [2022-01-10 19:37:19,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 19:37:19,709 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:19,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:19,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1876425864, now seen corresponding path program 1 times [2022-01-10 19:37:19,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:19,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958704239] [2022-01-10 19:37:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:19,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:19,763 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 19:37:19,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:19,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958704239] [2022-01-10 19:37:19,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958704239] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:19,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:19,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:19,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501497045] [2022-01-10 19:37:19,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:19,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:19,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:19,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:19,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:19,765 INFO L87 Difference]: Start difference. First operand 4276 states and 6918 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:19,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:19,955 INFO L93 Difference]: Finished difference Result 6399 states and 9833 transitions. [2022-01-10 19:37:19,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:19,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:19,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:19,965 INFO L225 Difference]: With dead ends: 6399 [2022-01-10 19:37:19,966 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:19,970 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 19:37:19,971 INFO L933 BasicCegarLoop]: 5541 mSDtfsCounter, 5430 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5430 SdHoareTripleChecker+Valid, 5633 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:19,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5430 Valid, 5633 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:19,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:20,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6119822139012403) internal successors, (6888), 4275 states have internal predecessors, (6888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:20,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6888 transitions. [2022-01-10 19:37:20,147 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6888 transitions. Word has length 132 [2022-01-10 19:37:20,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:20,147 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6888 transitions. [2022-01-10 19:37:20,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:20,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6888 transitions. [2022-01-10 19:37:20,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:20,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:20,149 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] [2022-01-10 19:37:20,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 19:37:20,149 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:20,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:20,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1089413271, now seen corresponding path program 1 times [2022-01-10 19:37:20,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:20,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417966006] [2022-01-10 19:37:20,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:20,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:20,193 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 19:37:20,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:20,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417966006] [2022-01-10 19:37:20,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417966006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:20,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:20,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:20,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014365151] [2022-01-10 19:37:20,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:20,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:20,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:20,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:20,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:20,196 INFO L87 Difference]: Start difference. First operand 4276 states and 6888 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:20,389 INFO L93 Difference]: Finished difference Result 6398 states and 9772 transitions. [2022-01-10 19:37:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:20,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:20,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:20,400 INFO L225 Difference]: With dead ends: 6398 [2022-01-10 19:37:20,400 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:20,404 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 19:37:20,405 INFO L933 BasicCegarLoop]: 5524 mSDtfsCounter, 5413 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5413 SdHoareTripleChecker+Valid, 5615 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:20,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5413 Valid, 5615 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:20,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:20,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:20,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.6049613854434823) internal successors, (6858), 4275 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:20,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6858 transitions. [2022-01-10 19:37:20,566 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6858 transitions. Word has length 132 [2022-01-10 19:37:20,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:20,566 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6858 transitions. [2022-01-10 19:37:20,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6858 transitions. [2022-01-10 19:37:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:20,568 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:20,568 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] [2022-01-10 19:37:20,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 19:37:20,568 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:20,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:20,569 INFO L85 PathProgramCache]: Analyzing trace with hash 220668086, now seen corresponding path program 1 times [2022-01-10 19:37:20,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:20,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514880655] [2022-01-10 19:37:20,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:20,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:20,633 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 19:37:20,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:20,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514880655] [2022-01-10 19:37:20,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514880655] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:20,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:20,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:20,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784871773] [2022-01-10 19:37:20,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:20,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:20,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:20,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:20,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:20,635 INFO L87 Difference]: Start difference. First operand 4276 states and 6858 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:20,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:20,786 INFO L93 Difference]: Finished difference Result 6397 states and 9711 transitions. [2022-01-10 19:37:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:20,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:20,802 INFO L225 Difference]: With dead ends: 6397 [2022-01-10 19:37:20,802 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:20,807 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 19:37:20,807 INFO L933 BasicCegarLoop]: 5507 mSDtfsCounter, 5396 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5396 SdHoareTripleChecker+Valid, 5597 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:20,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5396 Valid, 5597 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:20,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:20,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:20,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.5979405569857243) internal successors, (6828), 4275 states have internal predecessors, (6828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:20,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6828 transitions. [2022-01-10 19:37:20,952 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6828 transitions. Word has length 132 [2022-01-10 19:37:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:20,952 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6828 transitions. [2022-01-10 19:37:20,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:20,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6828 transitions. [2022-01-10 19:37:20,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:20,954 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:20,954 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] [2022-01-10 19:37:20,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 19:37:20,955 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:20,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:20,956 INFO L85 PathProgramCache]: Analyzing trace with hash 225021013, now seen corresponding path program 1 times [2022-01-10 19:37:20,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:20,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911706642] [2022-01-10 19:37:20,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:20,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:20,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:20,996 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 19:37:20,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:20,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911706642] [2022-01-10 19:37:20,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911706642] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:20,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:20,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:20,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862300651] [2022-01-10 19:37:20,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:20,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:20,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:20,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:20,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:20,998 INFO L87 Difference]: Start difference. First operand 4276 states and 6828 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:21,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:21,161 INFO L93 Difference]: Finished difference Result 6396 states and 9650 transitions. [2022-01-10 19:37:21,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:21,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:21,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:21,169 INFO L225 Difference]: With dead ends: 6396 [2022-01-10 19:37:21,169 INFO L226 Difference]: Without dead ends: 4276 [2022-01-10 19:37:21,173 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 19:37:21,173 INFO L933 BasicCegarLoop]: 5490 mSDtfsCounter, 5379 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5379 SdHoareTripleChecker+Valid, 5579 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:21,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5379 Valid, 5579 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:21,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2022-01-10 19:37:21,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4276. [2022-01-10 19:37:21,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4273 states have (on average 1.5909197285279664) internal successors, (6798), 4275 states have internal predecessors, (6798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 6798 transitions. [2022-01-10 19:37:21,321 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 6798 transitions. Word has length 132 [2022-01-10 19:37:21,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:21,321 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 6798 transitions. [2022-01-10 19:37:21,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 6798 transitions. [2022-01-10 19:37:21,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:21,323 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:21,323 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] [2022-01-10 19:37:21,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 19:37:21,323 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:21,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:21,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1502522100, now seen corresponding path program 1 times [2022-01-10 19:37:21,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:21,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653118611] [2022-01-10 19:37:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:21,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:21,375 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 19:37:21,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653118611] [2022-01-10 19:37:21,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653118611] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:21,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:21,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 19:37:21,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167696842] [2022-01-10 19:37:21,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:21,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 19:37:21,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 19:37:21,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 19:37:21,377 INFO L87 Difference]: Start difference. First operand 4276 states and 6798 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:21,810 INFO L93 Difference]: Finished difference Result 7865 states and 11582 transitions. [2022-01-10 19:37:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 19:37:21,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:21,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:21,823 INFO L225 Difference]: With dead ends: 7865 [2022-01-10 19:37:21,823 INFO L226 Difference]: Without dead ends: 5794 [2022-01-10 19:37:21,828 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 19:37:21,829 INFO L933 BasicCegarLoop]: 5517 mSDtfsCounter, 3586 mSDsluCounter, 15214 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3586 SdHoareTripleChecker+Valid, 20731 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:21,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3586 Valid, 20731 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 19:37:21,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5794 states. [2022-01-10 19:37:21,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5794 to 4282. [2022-01-10 19:37:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4279 states have (on average 1.5849497546155644) internal successors, (6782), 4281 states have internal predecessors, (6782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:22,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6782 transitions. [2022-01-10 19:37:22,010 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6782 transitions. Word has length 132 [2022-01-10 19:37:22,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:22,011 INFO L470 AbstractCegarLoop]: Abstraction has 4282 states and 6782 transitions. [2022-01-10 19:37:22,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6782 transitions. [2022-01-10 19:37:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:22,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:22,012 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] [2022-01-10 19:37:22,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 19:37:22,013 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:22,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:22,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2099052491, now seen corresponding path program 1 times [2022-01-10 19:37:22,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:22,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563627833] [2022-01-10 19:37:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:22,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:22,072 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 19:37:22,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:22,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563627833] [2022-01-10 19:37:22,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563627833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:22,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:22,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:22,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151337188] [2022-01-10 19:37:22,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:22,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:22,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:22,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:22,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:22,074 INFO L87 Difference]: Start difference. First operand 4282 states and 6782 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:22,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:22,233 INFO L93 Difference]: Finished difference Result 6426 states and 9578 transitions. [2022-01-10 19:37:22,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:22,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:22,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:22,242 INFO L225 Difference]: With dead ends: 6426 [2022-01-10 19:37:22,242 INFO L226 Difference]: Without dead ends: 4282 [2022-01-10 19:37:22,246 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 19:37:22,247 INFO L933 BasicCegarLoop]: 5485 mSDtfsCounter, 5392 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5392 SdHoareTripleChecker+Valid, 5485 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 19:37:22,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5392 Valid, 5485 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:22,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2022-01-10 19:37:22,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4282. [2022-01-10 19:37:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4279 states have (on average 1.5830801589156345) internal successors, (6774), 4281 states have internal predecessors, (6774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6774 transitions. [2022-01-10 19:37:22,412 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6774 transitions. Word has length 132 [2022-01-10 19:37:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:22,412 INFO L470 AbstractCegarLoop]: Abstraction has 4282 states and 6774 transitions. [2022-01-10 19:37:22,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:22,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6774 transitions. [2022-01-10 19:37:22,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:22,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:22,414 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] [2022-01-10 19:37:22,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 19:37:22,414 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:22,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:22,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1073560492, now seen corresponding path program 1 times [2022-01-10 19:37:22,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:22,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315954380] [2022-01-10 19:37:22,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:22,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:22,463 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 19:37:22,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:22,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315954380] [2022-01-10 19:37:22,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315954380] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:22,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:22,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:22,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666789942] [2022-01-10 19:37:22,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:22,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:22,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:22,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:22,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:22,465 INFO L87 Difference]: Start difference. First operand 4282 states and 6774 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:22,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:22,627 INFO L93 Difference]: Finished difference Result 6422 states and 9558 transitions. [2022-01-10 19:37:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:22,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:22,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:22,636 INFO L225 Difference]: With dead ends: 6422 [2022-01-10 19:37:22,636 INFO L226 Difference]: Without dead ends: 4282 [2022-01-10 19:37:22,640 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 19:37:22,640 INFO L933 BasicCegarLoop]: 5480 mSDtfsCounter, 5383 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5383 SdHoareTripleChecker+Valid, 5480 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 19:37:22,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5383 Valid, 5480 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:22,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2022-01-10 19:37:22,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4282. [2022-01-10 19:37:22,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4282 states, 4279 states have (on average 1.5812105632157045) internal successors, (6766), 4281 states have internal predecessors, (6766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4282 states to 4282 states and 6766 transitions. [2022-01-10 19:37:22,800 INFO L78 Accepts]: Start accepts. Automaton has 4282 states and 6766 transitions. Word has length 132 [2022-01-10 19:37:22,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:22,801 INFO L470 AbstractCegarLoop]: Abstraction has 4282 states and 6766 transitions. [2022-01-10 19:37:22,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:22,801 INFO L276 IsEmpty]: Start isEmpty. Operand 4282 states and 6766 transitions. [2022-01-10 19:37:22,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-01-10 19:37:22,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:22,802 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] [2022-01-10 19:37:22,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 19:37:22,803 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:22,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:22,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1062244365, now seen corresponding path program 1 times [2022-01-10 19:37:22,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:22,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622946741] [2022-01-10 19:37:22,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:22,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:22,855 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 19:37:22,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:22,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622946741] [2022-01-10 19:37:22,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622946741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:22,856 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:22,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 19:37:22,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100710514] [2022-01-10 19:37:22,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:22,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:22,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:22,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:22,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:22,857 INFO L87 Difference]: Start difference. First operand 4282 states and 6766 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:23,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:23,177 INFO L93 Difference]: Finished difference Result 8396 states and 12120 transitions. [2022-01-10 19:37:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:23,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-01-10 19:37:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:23,188 INFO L225 Difference]: With dead ends: 8396 [2022-01-10 19:37:23,188 INFO L226 Difference]: Without dead ends: 6272 [2022-01-10 19:37:23,192 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 19:37:23,192 INFO L933 BasicCegarLoop]: 5469 mSDtfsCounter, 5311 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 6811 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:23,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5311 Valid, 6811 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:23,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6272 states. [2022-01-10 19:37:23,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6272 to 6134. [2022-01-10 19:37:23,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 6131 states have (on average 1.4937204371228185) internal successors, (9158), 6133 states have internal predecessors, (9158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:23,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 9158 transitions. [2022-01-10 19:37:23,465 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 9158 transitions. Word has length 132 [2022-01-10 19:37:23,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:23,465 INFO L470 AbstractCegarLoop]: Abstraction has 6134 states and 9158 transitions. [2022-01-10 19:37:23,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:23,465 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 9158 transitions. [2022-01-10 19:37:23,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 19:37:23,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:23,470 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] [2022-01-10 19:37:23,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 19:37:23,470 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:23,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 878533393, now seen corresponding path program 1 times [2022-01-10 19:37:23,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:23,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105942867] [2022-01-10 19:37:23,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:23,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:23,533 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 19:37:23,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:23,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105942867] [2022-01-10 19:37:23,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105942867] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:23,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:23,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:37:23,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574530676] [2022-01-10 19:37:23,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:23,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:23,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:23,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:23,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:23,535 INFO L87 Difference]: Start difference. First operand 6134 states and 9158 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:24,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:24,062 INFO L93 Difference]: Finished difference Result 13908 states and 19254 transitions. [2022-01-10 19:37:24,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:24,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2022-01-10 19:37:24,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:24,077 INFO L225 Difference]: With dead ends: 13908 [2022-01-10 19:37:24,077 INFO L226 Difference]: Without dead ends: 9938 [2022-01-10 19:37:24,084 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 19:37:24,084 INFO L933 BasicCegarLoop]: 5466 mSDtfsCounter, 5347 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5347 SdHoareTripleChecker+Valid, 6808 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:24,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5347 Valid, 6808 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:24,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9938 states. [2022-01-10 19:37:24,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9938 to 9678. [2022-01-10 19:37:24,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9678 states, 9675 states have (on average 1.4199483204134367) internal successors, (13738), 9677 states have internal predecessors, (13738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:24,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9678 states to 9678 states and 13738 transitions. [2022-01-10 19:37:24,540 INFO L78 Accepts]: Start accepts. Automaton has 9678 states and 13738 transitions. Word has length 214 [2022-01-10 19:37:24,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:24,540 INFO L470 AbstractCegarLoop]: Abstraction has 9678 states and 13738 transitions. [2022-01-10 19:37:24,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:24,541 INFO L276 IsEmpty]: Start isEmpty. Operand 9678 states and 13738 transitions. [2022-01-10 19:37:24,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 19:37:24,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:24,546 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] [2022-01-10 19:37:24,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 19:37:24,546 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:24,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:24,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1185270704, now seen corresponding path program 1 times [2022-01-10 19:37:24,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:24,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525916920] [2022-01-10 19:37:24,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:24,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:24,609 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 19:37:24,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:24,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525916920] [2022-01-10 19:37:24,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525916920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:24,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:24,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:37:24,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129833062] [2022-01-10 19:37:24,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:24,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:24,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:24,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:24,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:24,613 INFO L87 Difference]: Start difference. First operand 9678 states and 13738 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:25,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:25,323 INFO L93 Difference]: Finished difference Result 24387 states and 32638 transitions. [2022-01-10 19:37:25,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:25,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2022-01-10 19:37:25,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:25,349 INFO L225 Difference]: With dead ends: 24387 [2022-01-10 19:37:25,349 INFO L226 Difference]: Without dead ends: 16955 [2022-01-10 19:37:25,366 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 19:37:25,367 INFO L933 BasicCegarLoop]: 5816 mSDtfsCounter, 5338 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5338 SdHoareTripleChecker+Valid, 7307 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:25,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5338 Valid, 7307 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:25,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16955 states. [2022-01-10 19:37:26,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16955 to 16711. [2022-01-10 19:37:26,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16711 states, 16708 states have (on average 1.356954752214508) internal successors, (22672), 16710 states have internal predecessors, (22672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:26,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16711 states to 16711 states and 22672 transitions. [2022-01-10 19:37:26,203 INFO L78 Accepts]: Start accepts. Automaton has 16711 states and 22672 transitions. Word has length 214 [2022-01-10 19:37:26,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:26,203 INFO L470 AbstractCegarLoop]: Abstraction has 16711 states and 22672 transitions. [2022-01-10 19:37:26,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:26,204 INFO L276 IsEmpty]: Start isEmpty. Operand 16711 states and 22672 transitions. [2022-01-10 19:37:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-01-10 19:37:26,213 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:26,213 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] [2022-01-10 19:37:26,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 19:37:26,213 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:26,214 INFO L85 PathProgramCache]: Analyzing trace with hash -430141136, now seen corresponding path program 1 times [2022-01-10 19:37:26,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:26,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689082683] [2022-01-10 19:37:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:26,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:26,268 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 19:37:26,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:26,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689082683] [2022-01-10 19:37:26,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689082683] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:26,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:26,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:37:26,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952654479] [2022-01-10 19:37:26,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:26,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:26,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:26,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:26,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:26,270 INFO L87 Difference]: Start difference. First operand 16711 states and 22672 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:26,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:26,987 INFO L93 Difference]: Finished difference Result 31135 states and 41183 transitions. [2022-01-10 19:37:26,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:26,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 214 [2022-01-10 19:37:26,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:27,008 INFO L225 Difference]: With dead ends: 31135 [2022-01-10 19:37:27,008 INFO L226 Difference]: Without dead ends: 16592 [2022-01-10 19:37:27,021 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 19:37:27,022 INFO L933 BasicCegarLoop]: 5479 mSDtfsCounter, 1517 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 9437 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 19:37:27,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1517 Valid, 9437 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:27,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16592 states. [2022-01-10 19:37:27,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16592 to 16592. [2022-01-10 19:37:27,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16592 states, 16589 states have (on average 1.3579480378564108) internal successors, (22527), 16591 states have internal predecessors, (22527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:27,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16592 states to 16592 states and 22527 transitions. [2022-01-10 19:37:27,690 INFO L78 Accepts]: Start accepts. Automaton has 16592 states and 22527 transitions. Word has length 214 [2022-01-10 19:37:27,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:27,691 INFO L470 AbstractCegarLoop]: Abstraction has 16592 states and 22527 transitions. [2022-01-10 19:37:27,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:27,691 INFO L276 IsEmpty]: Start isEmpty. Operand 16592 states and 22527 transitions. [2022-01-10 19:37:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-10 19:37:27,700 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:27,700 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] [2022-01-10 19:37:27,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 19:37:27,701 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:27,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:27,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1050818831, now seen corresponding path program 1 times [2022-01-10 19:37:27,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:27,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910251712] [2022-01-10 19:37:27,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:27,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:27,774 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 19:37:27,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:27,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910251712] [2022-01-10 19:37:27,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910251712] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:27,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:27,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:37:27,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004205114] [2022-01-10 19:37:27,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:27,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:27,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:27,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:27,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:27,777 INFO L87 Difference]: Start difference. First operand 16592 states and 22527 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:29,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:29,020 INFO L93 Difference]: Finished difference Result 44850 states and 58657 transitions. [2022-01-10 19:37:29,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:29,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2022-01-10 19:37:29,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:29,061 INFO L225 Difference]: With dead ends: 44850 [2022-01-10 19:37:29,061 INFO L226 Difference]: Without dead ends: 30504 [2022-01-10 19:37:29,080 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 19:37:29,081 INFO L933 BasicCegarLoop]: 5803 mSDtfsCounter, 5337 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 7292 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:29,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 7292 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:29,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30504 states. [2022-01-10 19:37:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30504 to 29652. [2022-01-10 19:37:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29652 states, 29649 states have (on average 1.3196060575398834) internal successors, (39125), 29651 states have internal predecessors, (39125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:30,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29652 states to 29652 states and 39125 transitions. [2022-01-10 19:37:30,468 INFO L78 Accepts]: Start accepts. Automaton has 29652 states and 39125 transitions. Word has length 215 [2022-01-10 19:37:30,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:30,468 INFO L470 AbstractCegarLoop]: Abstraction has 29652 states and 39125 transitions. [2022-01-10 19:37:30,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:30,469 INFO L276 IsEmpty]: Start isEmpty. Operand 29652 states and 39125 transitions. [2022-01-10 19:37:30,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-01-10 19:37:30,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:30,483 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] [2022-01-10 19:37:30,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 19:37:30,483 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:30,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:30,484 INFO L85 PathProgramCache]: Analyzing trace with hash -725545650, now seen corresponding path program 1 times [2022-01-10 19:37:30,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:30,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864591900] [2022-01-10 19:37:30,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:30,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:30,524 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 19:37:30,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:30,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864591900] [2022-01-10 19:37:30,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864591900] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:30,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:30,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:37:30,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465482179] [2022-01-10 19:37:30,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:30,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:30,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:30,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:30,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:30,526 INFO L87 Difference]: Start difference. First operand 29652 states and 39125 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:31,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:31,845 INFO L93 Difference]: Finished difference Result 57011 states and 74083 transitions. [2022-01-10 19:37:31,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:31,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 215 [2022-01-10 19:37:31,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:31,886 INFO L225 Difference]: With dead ends: 57011 [2022-01-10 19:37:31,887 INFO L226 Difference]: Without dead ends: 29534 [2022-01-10 19:37:31,920 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 19:37:31,921 INFO L933 BasicCegarLoop]: 5478 mSDtfsCounter, 1515 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 9436 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 19:37:31,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1515 Valid, 9436 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:31,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29534 states. [2022-01-10 19:37:33,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29534 to 29534. [2022-01-10 19:37:33,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29534 states, 29531 states have (on average 1.3200365717381735) internal successors, (38982), 29533 states have internal predecessors, (38982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:33,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29534 states to 29534 states and 38982 transitions. [2022-01-10 19:37:33,505 INFO L78 Accepts]: Start accepts. Automaton has 29534 states and 38982 transitions. Word has length 215 [2022-01-10 19:37:33,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:33,505 INFO L470 AbstractCegarLoop]: Abstraction has 29534 states and 38982 transitions. [2022-01-10 19:37:33,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:33,505 INFO L276 IsEmpty]: Start isEmpty. Operand 29534 states and 38982 transitions. [2022-01-10 19:37:33,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 19:37:33,516 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:33,516 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] [2022-01-10 19:37:33,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 19:37:33,516 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:33,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:33,517 INFO L85 PathProgramCache]: Analyzing trace with hash -546912223, now seen corresponding path program 1 times [2022-01-10 19:37:33,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:33,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297458881] [2022-01-10 19:37:33,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:33,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:33,583 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 19:37:33,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:33,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297458881] [2022-01-10 19:37:33,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297458881] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:33,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:33,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:37:33,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65217301] [2022-01-10 19:37:33,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:33,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:33,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:33,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:33,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:33,585 INFO L87 Difference]: Start difference. First operand 29534 states and 38982 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:36,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:36,289 INFO L93 Difference]: Finished difference Result 83091 states and 107270 transitions. [2022-01-10 19:37:36,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:36,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 216 [2022-01-10 19:37:36,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:36,365 INFO L225 Difference]: With dead ends: 83091 [2022-01-10 19:37:36,365 INFO L226 Difference]: Without dead ends: 55803 [2022-01-10 19:37:36,384 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 19:37:36,384 INFO L933 BasicCegarLoop]: 5830 mSDtfsCounter, 5337 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 7317 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:36,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 7317 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:36,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55803 states. [2022-01-10 19:37:39,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55803 to 54327. [2022-01-10 19:37:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54327 states, 54324 states have (on average 1.297437596642368) internal successors, (70482), 54326 states have internal predecessors, (70482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:39,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54327 states to 54327 states and 70482 transitions. [2022-01-10 19:37:39,206 INFO L78 Accepts]: Start accepts. Automaton has 54327 states and 70482 transitions. Word has length 216 [2022-01-10 19:37:39,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:39,206 INFO L470 AbstractCegarLoop]: Abstraction has 54327 states and 70482 transitions. [2022-01-10 19:37:39,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:39,206 INFO L276 IsEmpty]: Start isEmpty. Operand 54327 states and 70482 transitions. [2022-01-10 19:37:39,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-01-10 19:37:39,228 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:39,228 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] [2022-01-10 19:37:39,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 19:37:39,228 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:39,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:39,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1127454402, now seen corresponding path program 1 times [2022-01-10 19:37:39,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:39,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991105522] [2022-01-10 19:37:39,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:39,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:39,370 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 19:37:39,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:39,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991105522] [2022-01-10 19:37:39,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991105522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:39,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:39,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:37:39,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107790540] [2022-01-10 19:37:39,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:39,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:39,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:39,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:39,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:39,372 INFO L87 Difference]: Start difference. First operand 54327 states and 70482 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:42,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:42,264 INFO L93 Difference]: Finished difference Result 106355 states and 136791 transitions. [2022-01-10 19:37:42,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:42,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 216 [2022-01-10 19:37:42,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:42,337 INFO L225 Difference]: With dead ends: 106355 [2022-01-10 19:37:42,337 INFO L226 Difference]: Without dead ends: 54210 [2022-01-10 19:37:42,373 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 19:37:42,373 INFO L933 BasicCegarLoop]: 5477 mSDtfsCounter, 1513 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 9435 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 19:37:42,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 9435 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:42,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54210 states. [2022-01-10 19:37:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54210 to 54210. [2022-01-10 19:37:45,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54210 states, 54207 states have (on average 1.2976368365709225) internal successors, (70341), 54209 states have internal predecessors, (70341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:45,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54210 states to 54210 states and 70341 transitions. [2022-01-10 19:37:45,429 INFO L78 Accepts]: Start accepts. Automaton has 54210 states and 70341 transitions. Word has length 216 [2022-01-10 19:37:45,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 19:37:45,429 INFO L470 AbstractCegarLoop]: Abstraction has 54210 states and 70341 transitions. [2022-01-10 19:37:45,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:45,430 INFO L276 IsEmpty]: Start isEmpty. Operand 54210 states and 70341 transitions. [2022-01-10 19:37:45,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-10 19:37:45,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 19:37:45,449 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] [2022-01-10 19:37:45,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 19:37:45,449 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 19:37:45,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 19:37:45,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1168246236, now seen corresponding path program 1 times [2022-01-10 19:37:45,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 19:37:45,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404084321] [2022-01-10 19:37:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 19:37:45,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 19:37:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 19:37:45,514 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 19:37:45,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 19:37:45,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404084321] [2022-01-10 19:37:45,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404084321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 19:37:45,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 19:37:45,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 19:37:45,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847355794] [2022-01-10 19:37:45,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 19:37:45,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 19:37:45,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 19:37:45,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 19:37:45,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 19:37:45,516 INFO L87 Difference]: Start difference. First operand 54210 states and 70341 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 19:37:50,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 19:37:50,888 INFO L93 Difference]: Finished difference Result 155702 states and 199507 transitions. [2022-01-10 19:37:50,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 19:37:50,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 217 [2022-01-10 19:37:50,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 19:37:51,062 INFO L225 Difference]: With dead ends: 155702 [2022-01-10 19:37:51,063 INFO L226 Difference]: Without dead ends: 103738 [2022-01-10 19:37:51,112 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 19:37:51,120 INFO L933 BasicCegarLoop]: 5886 mSDtfsCounter, 5337 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5337 SdHoareTripleChecker+Valid, 7371 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 19:37:51,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5337 Valid, 7371 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 19:37:51,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103738 states.