/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_NONE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 01:14:59,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 01:14:59,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 01:14:59,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-11 01:14:59,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 01:14:59,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 01:14:59,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 01:14:59,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 01:14:59,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 01:14:59,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 01:14:59,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 01:14:59,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 01:14:59,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 01:14:59,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 01:14:59,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 01:14:59,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 01:14:59,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 01:14:59,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 01:14:59,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 01:14:59,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 01:14:59,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 01:14:59,105 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-11 01:14:59,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 01:14:59,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 01:14:59,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 01:14:59,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 01:14:59,146 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 01:14:59,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 01:14:59,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 01:14:59,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 01:14:59,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 01:14:59,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 01:14:59,148 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 01:14:59,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 01:14:59,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 01:14:59,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 01:14:59,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 01:14:59,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 01:14:59,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 01:14:59,150 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 01:14:59,150 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 01:14:59,150 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 01:14:59,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 01:14:59,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 01:14:59,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 01:14:59,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 01:14:59,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 01:14:59,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:14:59,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 01:14:59,151 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 01:14:59,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 01:14:59,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 01:14:59,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 01:14:59,152 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 01:14:59,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 01:14:59,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 01:14:59,152 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 01:14:59,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 01:14:59,153 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 01:14:59,153 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 01:14:59,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 01:14:59,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 01:14:59,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 01:14:59,383 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 01:14:59,384 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 01:14:59,385 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c [2022-01-11 01:14:59,441 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1ea9762/3af033b0ab8542389a9caa71e8b76b1b/FLAGdf5adc265 [2022-01-11 01:15:00,234 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 01:15:00,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.15.cil.c [2022-01-11 01:15:00,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1ea9762/3af033b0ab8542389a9caa71e8b76b1b/FLAGdf5adc265 [2022-01-11 01:15:00,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d1ea9762/3af033b0ab8542389a9caa71e8b76b1b [2022-01-11 01:15:00,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 01:15:00,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 01:15:00,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 01:15:00,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 01:15:00,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 01:15:00,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:00,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@543718be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:00, skipping insertion in model container [2022-01-11 01:15:00,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 01:15:00" (1/1) ... [2022-01-11 01:15:00,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 01:15:00,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 01:15:02,144 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_label43+token_ring.15.cil.c[381679,381692] [2022-01-11 01:15:02,166 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_label43+token_ring.15.cil.c[383339,383352] [2022-01-11 01:15:02,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:15:02,455 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 01:15:03,196 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_label43+token_ring.15.cil.c[381679,381692] [2022-01-11 01:15:03,200 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_label43+token_ring.15.cil.c[383339,383352] [2022-01-11 01:15:03,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 01:15:03,290 INFO L208 MainTranslator]: Completed translation [2022-01-11 01:15:03,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03 WrapperNode [2022-01-11 01:15:03,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 01:15:03,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 01:15:03,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 01:15:03,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 01:15:03,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:03,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:03,911 INFO L137 Inliner]: procedures = 71, calls = 81, calls flagged for inlining = 76, calls inlined = 313, statements flattened = 16998 [2022-01-11 01:15:03,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 01:15:03,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 01:15:03,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 01:15:03,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 01:15:03,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:03,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:04,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:04,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:04,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:04,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:04,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:04,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 01:15:04,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 01:15:04,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 01:15:04,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 01:15:04,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (1/1) ... [2022-01-11 01:15:04,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 01:15:04,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 01:15:04,450 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) [2022-01-11 01:15:04,460 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 [2022-01-11 01:15:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 01:15:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 01:15:04,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 01:15:04,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 01:15:04,602 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 01:15:04,603 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 01:15:13,580 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 01:15:13,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 01:15:13,611 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-01-11 01:15:13,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:15:13 BoogieIcfgContainer [2022-01-11 01:15:13,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 01:15:13,616 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 01:15:13,616 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 01:15:13,617 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 01:15:13,620 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:15:13" (1/1) ... [2022-01-11 01:15:15,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:15:15 BasicIcfg [2022-01-11 01:15:15,389 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 01:15:15,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 01:15:15,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 01:15:15,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 01:15:15,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 01:15:00" (1/4) ... [2022-01-11 01:15:15,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717d2270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:15:15, skipping insertion in model container [2022-01-11 01:15:15,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 01:15:03" (2/4) ... [2022-01-11 01:15:15,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717d2270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 01:15:15, skipping insertion in model container [2022-01-11 01:15:15,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 01:15:13" (3/4) ... [2022-01-11 01:15:15,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717d2270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 01:15:15, skipping insertion in model container [2022-01-11 01:15:15,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 01:15:15" (4/4) ... [2022-01-11 01:15:15,395 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.15.cil.cTransformedIcfg [2022-01-11 01:15:15,399 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 01:15:15,399 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-11 01:15:15,447 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 01:15:15,452 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 [2022-01-11 01:15:15,452 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-11 01:15:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 4214 states, 4210 states have (on average 1.6912114014251782) internal successors, (7120), 4213 states have internal predecessors, (7120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:15,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:15,523 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:15,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:15,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:15,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:15,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2029452267, now seen corresponding path program 1 times [2022-01-11 01:15:15,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:15,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322185827] [2022-01-11 01:15:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:15,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:15,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:15,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322185827] [2022-01-11 01:15:15,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322185827] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:15,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:15,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:15,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274340654] [2022-01-11 01:15:15,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:15,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:15,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:15,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:15,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:15,939 INFO L87 Difference]: Start difference. First operand has 4214 states, 4210 states have (on average 1.6912114014251782) internal successors, (7120), 4213 states have internal predecessors, (7120), 0 states have call successors, (0), 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 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:16,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:16,242 INFO L93 Difference]: Finished difference Result 10160 states and 16806 transitions. [2022-01-11 01:15:16,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:16,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:16,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:16,281 INFO L225 Difference]: With dead ends: 10160 [2022-01-11 01:15:16,282 INFO L226 Difference]: Without dead ends: 5896 [2022-01-11 01:15:16,295 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 [2022-01-11 01:15:16,300 INFO L933 BasicCegarLoop]: 7015 mSDtfsCounter, 6853 mSDsluCounter, 2707 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6853 SdHoareTripleChecker+Valid, 9722 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:16,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6853 Valid, 9722 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-01-11 01:15:16,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5892. [2022-01-11 01:15:16,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6155544235014434) internal successors, (9514), 5891 states have internal predecessors, (9514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:16,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9514 transitions. [2022-01-11 01:15:16,515 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9514 transitions. Word has length 176 [2022-01-11 01:15:16,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:16,516 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9514 transitions. [2022-01-11 01:15:16,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9514 transitions. [2022-01-11 01:15:16,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:16,524 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:16,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:16,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 01:15:16,525 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:16,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:16,527 INFO L85 PathProgramCache]: Analyzing trace with hash 159812149, now seen corresponding path program 1 times [2022-01-11 01:15:16,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:16,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384045238] [2022-01-11 01:15:16,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:16,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:16,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:16,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384045238] [2022-01-11 01:15:16,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384045238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:16,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:16,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:16,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897297369] [2022-01-11 01:15:16,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:16,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:16,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:16,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:16,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:16,643 INFO L87 Difference]: Start difference. First operand 5892 states and 9514 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:16,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:16,775 INFO L93 Difference]: Finished difference Result 9642 states and 15034 transitions. [2022-01-11 01:15:16,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:16,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:16,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:16,798 INFO L225 Difference]: With dead ends: 9642 [2022-01-11 01:15:16,799 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:16,810 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 [2022-01-11 01:15:16,811 INFO L933 BasicCegarLoop]: 6942 mSDtfsCounter, 6926 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6926 SdHoareTripleChecker+Valid, 6942 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 [2022-01-11 01:15:16,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6926 Valid, 6942 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:17,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:17,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6141959585668195) internal successors, (9506), 5891 states have internal predecessors, (9506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:17,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9506 transitions. [2022-01-11 01:15:17,165 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9506 transitions. Word has length 176 [2022-01-11 01:15:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:17,167 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9506 transitions. [2022-01-11 01:15:17,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:17,168 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9506 transitions. [2022-01-11 01:15:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:17,172 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:17,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:17,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 01:15:17,178 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:17,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:17,180 INFO L85 PathProgramCache]: Analyzing trace with hash -600850411, now seen corresponding path program 1 times [2022-01-11 01:15:17,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:17,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279691174] [2022-01-11 01:15:17,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:17,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:17,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:17,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279691174] [2022-01-11 01:15:17,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279691174] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:17,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:17,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:17,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505016033] [2022-01-11 01:15:17,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:17,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:17,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:17,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:17,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:17,318 INFO L87 Difference]: Start difference. First operand 5892 states and 9506 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:17,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:17,464 INFO L93 Difference]: Finished difference Result 9641 states and 15017 transitions. [2022-01-11 01:15:17,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:17,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:17,487 INFO L225 Difference]: With dead ends: 9641 [2022-01-11 01:15:17,487 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:17,497 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 [2022-01-11 01:15:17,500 INFO L933 BasicCegarLoop]: 6937 mSDtfsCounter, 6920 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6920 SdHoareTripleChecker+Valid, 6937 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 [2022-01-11 01:15:17,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6920 Valid, 6937 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:17,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:17,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6128374936321956) internal successors, (9498), 5891 states have internal predecessors, (9498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:17,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9498 transitions. [2022-01-11 01:15:17,672 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9498 transitions. Word has length 176 [2022-01-11 01:15:17,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:17,672 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9498 transitions. [2022-01-11 01:15:17,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:17,674 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9498 transitions. [2022-01-11 01:15:17,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:17,676 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:17,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:17,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 01:15:17,676 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:17,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:17,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1452822069, now seen corresponding path program 1 times [2022-01-11 01:15:17,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:17,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042082191] [2022-01-11 01:15:17,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:17,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:17,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:17,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042082191] [2022-01-11 01:15:17,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042082191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:17,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:17,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:17,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129779740] [2022-01-11 01:15:17,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:17,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:17,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:17,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:17,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:17,762 INFO L87 Difference]: Start difference. First operand 5892 states and 9498 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:18,081 INFO L93 Difference]: Finished difference Result 9640 states and 15000 transitions. [2022-01-11 01:15:18,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:18,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:18,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:18,104 INFO L225 Difference]: With dead ends: 9640 [2022-01-11 01:15:18,104 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:18,112 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 [2022-01-11 01:15:18,117 INFO L933 BasicCegarLoop]: 6932 mSDtfsCounter, 6914 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6914 SdHoareTripleChecker+Valid, 6932 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 [2022-01-11 01:15:18,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6914 Valid, 6932 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:18,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:18,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:18,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6114790286975718) internal successors, (9490), 5891 states have internal predecessors, (9490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:18,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9490 transitions. [2022-01-11 01:15:18,316 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9490 transitions. Word has length 176 [2022-01-11 01:15:18,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:18,316 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9490 transitions. [2022-01-11 01:15:18,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:18,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9490 transitions. [2022-01-11 01:15:18,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:18,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:18,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:18,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 01:15:18,319 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:18,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:18,320 INFO L85 PathProgramCache]: Analyzing trace with hash -2083161067, now seen corresponding path program 1 times [2022-01-11 01:15:18,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:18,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707038439] [2022-01-11 01:15:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:18,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:18,405 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:18,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707038439] [2022-01-11 01:15:18,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707038439] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:18,406 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:18,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:18,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289849521] [2022-01-11 01:15:18,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:18,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:18,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:18,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:18,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:18,408 INFO L87 Difference]: Start difference. First operand 5892 states and 9490 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:18,574 INFO L93 Difference]: Finished difference Result 9639 states and 14983 transitions. [2022-01-11 01:15:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:18,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:18,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:18,602 INFO L225 Difference]: With dead ends: 9639 [2022-01-11 01:15:18,602 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:18,609 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 [2022-01-11 01:15:18,609 INFO L933 BasicCegarLoop]: 6927 mSDtfsCounter, 6908 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6908 SdHoareTripleChecker+Valid, 6927 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 [2022-01-11 01:15:18,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6908 Valid, 6927 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:18,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6101205637629479) internal successors, (9482), 5891 states have internal predecessors, (9482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:18,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9482 transitions. [2022-01-11 01:15:18,804 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9482 transitions. Word has length 176 [2022-01-11 01:15:18,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:18,808 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9482 transitions. [2022-01-11 01:15:18,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9482 transitions. [2022-01-11 01:15:18,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:18,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:18,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:18,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 01:15:18,812 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:18,813 INFO L85 PathProgramCache]: Analyzing trace with hash -2058677707, now seen corresponding path program 1 times [2022-01-11 01:15:18,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:18,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893671738] [2022-01-11 01:15:18,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:18,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:18,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:18,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893671738] [2022-01-11 01:15:18,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893671738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:18,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:18,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:18,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110331044] [2022-01-11 01:15:18,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:18,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:18,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:18,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:18,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:18,874 INFO L87 Difference]: Start difference. First operand 5892 states and 9482 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:19,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:19,052 INFO L93 Difference]: Finished difference Result 9638 states and 14966 transitions. [2022-01-11 01:15:19,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:19,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:19,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:19,065 INFO L225 Difference]: With dead ends: 9638 [2022-01-11 01:15:19,065 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:19,071 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 [2022-01-11 01:15:19,073 INFO L933 BasicCegarLoop]: 6922 mSDtfsCounter, 6902 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6902 SdHoareTripleChecker+Valid, 6922 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 [2022-01-11 01:15:19,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6902 Valid, 6922 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:19,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:19,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:19,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.608762098828324) internal successors, (9474), 5891 states have internal predecessors, (9474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:19,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9474 transitions. [2022-01-11 01:15:19,229 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9474 transitions. Word has length 176 [2022-01-11 01:15:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:19,229 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9474 transitions. [2022-01-11 01:15:19,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:19,229 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9474 transitions. [2022-01-11 01:15:19,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:19,231 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:19,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:19,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 01:15:19,232 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:19,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:19,232 INFO L85 PathProgramCache]: Analyzing trace with hash 297416725, now seen corresponding path program 1 times [2022-01-11 01:15:19,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:19,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55483584] [2022-01-11 01:15:19,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:19,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:19,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:19,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:19,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55483584] [2022-01-11 01:15:19,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55483584] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:19,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:19,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:19,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606491187] [2022-01-11 01:15:19,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:19,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:19,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:19,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:19,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:19,289 INFO L87 Difference]: Start difference. First operand 5892 states and 9474 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:19,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:19,435 INFO L93 Difference]: Finished difference Result 9637 states and 14949 transitions. [2022-01-11 01:15:19,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:19,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:19,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:19,451 INFO L225 Difference]: With dead ends: 9637 [2022-01-11 01:15:19,451 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:19,458 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 [2022-01-11 01:15:19,460 INFO L933 BasicCegarLoop]: 6917 mSDtfsCounter, 6896 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6896 SdHoareTripleChecker+Valid, 6917 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 [2022-01-11 01:15:19,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6896 Valid, 6917 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:19,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6074036338937001) internal successors, (9466), 5891 states have internal predecessors, (9466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9466 transitions. [2022-01-11 01:15:19,648 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9466 transitions. Word has length 176 [2022-01-11 01:15:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:19,649 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9466 transitions. [2022-01-11 01:15:19,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:19,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9466 transitions. [2022-01-11 01:15:19,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:19,651 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:19,651 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:19,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 01:15:19,651 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:19,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:19,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1983316660, now seen corresponding path program 1 times [2022-01-11 01:15:19,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:19,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084691778] [2022-01-11 01:15:19,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:19,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:19,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:19,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:19,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084691778] [2022-01-11 01:15:19,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084691778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:19,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:19,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:19,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499008659] [2022-01-11 01:15:19,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:19,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:19,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:19,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:19,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:19,751 INFO L87 Difference]: Start difference. First operand 5892 states and 9466 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:19,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:19,903 INFO L93 Difference]: Finished difference Result 9636 states and 14932 transitions. [2022-01-11 01:15:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:19,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:19,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:19,917 INFO L225 Difference]: With dead ends: 9636 [2022-01-11 01:15:19,917 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:19,924 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 [2022-01-11 01:15:19,925 INFO L933 BasicCegarLoop]: 6912 mSDtfsCounter, 6890 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6890 SdHoareTripleChecker+Valid, 6912 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 [2022-01-11 01:15:19,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6890 Valid, 6912 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:19,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:20,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6060451689590762) internal successors, (9458), 5891 states have internal predecessors, (9458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:20,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9458 transitions. [2022-01-11 01:15:20,096 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9458 transitions. Word has length 176 [2022-01-11 01:15:20,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:20,096 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9458 transitions. [2022-01-11 01:15:20,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:20,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9458 transitions. [2022-01-11 01:15:20,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:20,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:20,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:20,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 01:15:20,099 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:20,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:20,099 INFO L85 PathProgramCache]: Analyzing trace with hash -168419180, now seen corresponding path program 1 times [2022-01-11 01:15:20,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:20,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075920486] [2022-01-11 01:15:20,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:20,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:20,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:20,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:20,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075920486] [2022-01-11 01:15:20,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075920486] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:20,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:20,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:20,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010210277] [2022-01-11 01:15:20,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:20,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:20,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:20,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:20,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:20,162 INFO L87 Difference]: Start difference. First operand 5892 states and 9458 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:20,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:20,306 INFO L93 Difference]: Finished difference Result 9635 states and 14915 transitions. [2022-01-11 01:15:20,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:20,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:20,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:20,318 INFO L225 Difference]: With dead ends: 9635 [2022-01-11 01:15:20,319 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:20,325 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 [2022-01-11 01:15:20,327 INFO L933 BasicCegarLoop]: 6907 mSDtfsCounter, 6884 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6884 SdHoareTripleChecker+Valid, 6907 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 [2022-01-11 01:15:20,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6884 Valid, 6907 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:20,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6046867040244523) internal successors, (9450), 5891 states have internal predecessors, (9450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:20,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9450 transitions. [2022-01-11 01:15:20,514 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9450 transitions. Word has length 176 [2022-01-11 01:15:20,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:20,515 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9450 transitions. [2022-01-11 01:15:20,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:20,518 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9450 transitions. [2022-01-11 01:15:20,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:20,520 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:20,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:20,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 01:15:20,520 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:20,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1424737972, now seen corresponding path program 1 times [2022-01-11 01:15:20,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:20,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926705950] [2022-01-11 01:15:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:20,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:20,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:20,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:20,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926705950] [2022-01-11 01:15:20,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926705950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:20,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:20,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:20,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018306324] [2022-01-11 01:15:20,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:20,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:20,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:20,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:20,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:20,622 INFO L87 Difference]: Start difference. First operand 5892 states and 9450 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:20,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:20,785 INFO L93 Difference]: Finished difference Result 9634 states and 14898 transitions. [2022-01-11 01:15:20,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:20,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:20,800 INFO L225 Difference]: With dead ends: 9634 [2022-01-11 01:15:20,800 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:20,809 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 [2022-01-11 01:15:20,810 INFO L933 BasicCegarLoop]: 6902 mSDtfsCounter, 6878 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6878 SdHoareTripleChecker+Valid, 6902 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 [2022-01-11 01:15:20,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6878 Valid, 6902 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:20,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:20,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:20,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6033282390898285) internal successors, (9442), 5891 states have internal predecessors, (9442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:20,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9442 transitions. [2022-01-11 01:15:20,999 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9442 transitions. Word has length 176 [2022-01-11 01:15:21,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:21,000 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9442 transitions. [2022-01-11 01:15:21,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:21,000 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9442 transitions. [2022-01-11 01:15:21,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:21,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:21,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:21,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 01:15:21,003 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:21,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash -879174508, now seen corresponding path program 1 times [2022-01-11 01:15:21,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:21,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533526379] [2022-01-11 01:15:21,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:21,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:21,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:21,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533526379] [2022-01-11 01:15:21,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533526379] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:21,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:21,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:21,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084472534] [2022-01-11 01:15:21,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:21,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:21,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:21,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:21,057 INFO L87 Difference]: Start difference. First operand 5892 states and 9442 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:21,216 INFO L93 Difference]: Finished difference Result 9633 states and 14881 transitions. [2022-01-11 01:15:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:21,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:21,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:21,232 INFO L225 Difference]: With dead ends: 9633 [2022-01-11 01:15:21,232 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:21,240 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 [2022-01-11 01:15:21,241 INFO L933 BasicCegarLoop]: 6897 mSDtfsCounter, 6872 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6872 SdHoareTripleChecker+Valid, 6897 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 [2022-01-11 01:15:21,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6872 Valid, 6897 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:21,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:21,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:21,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6019697741552046) internal successors, (9434), 5891 states have internal predecessors, (9434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:21,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9434 transitions. [2022-01-11 01:15:21,433 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9434 transitions. Word has length 176 [2022-01-11 01:15:21,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:21,435 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9434 transitions. [2022-01-11 01:15:21,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:21,435 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9434 transitions. [2022-01-11 01:15:21,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:21,437 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:21,438 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:21,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 01:15:21,438 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:21,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:21,439 INFO L85 PathProgramCache]: Analyzing trace with hash 570526388, now seen corresponding path program 1 times [2022-01-11 01:15:21,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:21,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082535511] [2022-01-11 01:15:21,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:21,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:21,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:21,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:21,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082535511] [2022-01-11 01:15:21,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082535511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:21,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:21,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:21,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794631419] [2022-01-11 01:15:21,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:21,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:21,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:21,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:21,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:21,506 INFO L87 Difference]: Start difference. First operand 5892 states and 9434 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:21,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:21,710 INFO L93 Difference]: Finished difference Result 9632 states and 14864 transitions. [2022-01-11 01:15:21,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:21,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:21,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:21,722 INFO L225 Difference]: With dead ends: 9632 [2022-01-11 01:15:21,722 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:21,729 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 [2022-01-11 01:15:21,730 INFO L933 BasicCegarLoop]: 6892 mSDtfsCounter, 6866 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6866 SdHoareTripleChecker+Valid, 6892 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 [2022-01-11 01:15:21,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6866 Valid, 6892 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:21,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:21,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:21,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.6006113092205807) internal successors, (9426), 5891 states have internal predecessors, (9426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:21,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9426 transitions. [2022-01-11 01:15:21,910 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9426 transitions. Word has length 176 [2022-01-11 01:15:21,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:21,910 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9426 transitions. [2022-01-11 01:15:21,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9426 transitions. [2022-01-11 01:15:21,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:21,912 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:21,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:21,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 01:15:21,913 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:21,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:21,914 INFO L85 PathProgramCache]: Analyzing trace with hash -491087724, now seen corresponding path program 1 times [2022-01-11 01:15:21,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:21,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903311741] [2022-01-11 01:15:21,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:21,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:21,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:21,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903311741] [2022-01-11 01:15:21,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903311741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:21,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:21,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:21,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685544735] [2022-01-11 01:15:21,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:21,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:21,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:21,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:21,971 INFO L87 Difference]: Start difference. First operand 5892 states and 9426 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:22,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:22,147 INFO L93 Difference]: Finished difference Result 9631 states and 14847 transitions. [2022-01-11 01:15:22,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:22,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:22,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:22,160 INFO L225 Difference]: With dead ends: 9631 [2022-01-11 01:15:22,161 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:22,169 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 [2022-01-11 01:15:22,170 INFO L933 BasicCegarLoop]: 6887 mSDtfsCounter, 6860 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6860 SdHoareTripleChecker+Valid, 6887 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 [2022-01-11 01:15:22,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6860 Valid, 6887 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:22,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:22,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5992528442859568) internal successors, (9418), 5891 states have internal predecessors, (9418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9418 transitions. [2022-01-11 01:15:22,359 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9418 transitions. Word has length 176 [2022-01-11 01:15:22,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:22,360 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9418 transitions. [2022-01-11 01:15:22,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9418 transitions. [2022-01-11 01:15:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:22,362 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:22,362 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:22,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 01:15:22,362 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:22,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:22,363 INFO L85 PathProgramCache]: Analyzing trace with hash 28855988, now seen corresponding path program 1 times [2022-01-11 01:15:22,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:22,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316531523] [2022-01-11 01:15:22,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:22,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:22,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:22,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:22,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316531523] [2022-01-11 01:15:22,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316531523] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:22,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:22,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:22,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092486365] [2022-01-11 01:15:22,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:22,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:22,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:22,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:22,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:22,418 INFO L87 Difference]: Start difference. First operand 5892 states and 9418 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:22,656 INFO L93 Difference]: Finished difference Result 9630 states and 14830 transitions. [2022-01-11 01:15:22,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:22,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:22,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:22,668 INFO L225 Difference]: With dead ends: 9630 [2022-01-11 01:15:22,668 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:22,676 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 [2022-01-11 01:15:22,676 INFO L933 BasicCegarLoop]: 6882 mSDtfsCounter, 6854 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6854 SdHoareTripleChecker+Valid, 6882 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 [2022-01-11 01:15:22,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6854 Valid, 6882 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:22,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:22,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:22,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.597894379351333) internal successors, (9410), 5891 states have internal predecessors, (9410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:22,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9410 transitions. [2022-01-11 01:15:22,933 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9410 transitions. Word has length 176 [2022-01-11 01:15:22,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:22,933 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9410 transitions. [2022-01-11 01:15:22,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9410 transitions. [2022-01-11 01:15:22,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:22,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:22,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:22,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 01:15:22,936 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:22,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:22,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1894034284, now seen corresponding path program 1 times [2022-01-11 01:15:22,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:22,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684102527] [2022-01-11 01:15:22,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:22,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:22,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:22,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684102527] [2022-01-11 01:15:22,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684102527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:22,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:22,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:22,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975082574] [2022-01-11 01:15:22,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:22,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:22,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:22,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:22,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:22,994 INFO L87 Difference]: Start difference. First operand 5892 states and 9410 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:23,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:23,264 INFO L93 Difference]: Finished difference Result 9629 states and 14813 transitions. [2022-01-11 01:15:23,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:23,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:23,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:23,277 INFO L225 Difference]: With dead ends: 9629 [2022-01-11 01:15:23,277 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:23,284 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 [2022-01-11 01:15:23,285 INFO L933 BasicCegarLoop]: 6845 mSDtfsCounter, 6690 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6690 SdHoareTripleChecker+Valid, 6983 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:23,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6690 Valid, 6983 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:23,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:23,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:23,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5914416709118695) internal successors, (9372), 5891 states have internal predecessors, (9372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:23,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9372 transitions. [2022-01-11 01:15:23,478 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9372 transitions. Word has length 176 [2022-01-11 01:15:23,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:23,478 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9372 transitions. [2022-01-11 01:15:23,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:23,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9372 transitions. [2022-01-11 01:15:23,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:23,480 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:23,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:23,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 01:15:23,481 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:23,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:23,481 INFO L85 PathProgramCache]: Analyzing trace with hash -2118058445, now seen corresponding path program 1 times [2022-01-11 01:15:23,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:23,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295819755] [2022-01-11 01:15:23,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:23,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:23,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:23,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:23,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295819755] [2022-01-11 01:15:23,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295819755] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:23,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:23,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:23,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55704742] [2022-01-11 01:15:23,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:23,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:23,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:23,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:23,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:23,526 INFO L87 Difference]: Start difference. First operand 5892 states and 9372 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:23,720 INFO L93 Difference]: Finished difference Result 9628 states and 14736 transitions. [2022-01-11 01:15:23,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:23,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:23,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:23,731 INFO L225 Difference]: With dead ends: 9628 [2022-01-11 01:15:23,732 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:23,738 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 [2022-01-11 01:15:23,739 INFO L933 BasicCegarLoop]: 6824 mSDtfsCounter, 6669 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6669 SdHoareTripleChecker+Valid, 6961 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:23,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6669 Valid, 6961 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:23,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:23,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:23,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5849889624724063) internal successors, (9334), 5891 states have internal predecessors, (9334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9334 transitions. [2022-01-11 01:15:23,920 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9334 transitions. Word has length 176 [2022-01-11 01:15:23,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:23,920 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9334 transitions. [2022-01-11 01:15:23,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:23,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9334 transitions. [2022-01-11 01:15:23,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:23,922 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:23,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:23,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 01:15:23,923 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:23,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:23,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1151913262, now seen corresponding path program 1 times [2022-01-11 01:15:23,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:23,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113714935] [2022-01-11 01:15:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:23,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:23,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:23,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113714935] [2022-01-11 01:15:23,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113714935] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:23,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:23,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:23,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486333138] [2022-01-11 01:15:23,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:23,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:23,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:23,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:23,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:23,970 INFO L87 Difference]: Start difference. First operand 5892 states and 9334 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:24,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:24,222 INFO L93 Difference]: Finished difference Result 9627 states and 14659 transitions. [2022-01-11 01:15:24,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:24,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:24,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:24,233 INFO L225 Difference]: With dead ends: 9627 [2022-01-11 01:15:24,233 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:24,239 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 [2022-01-11 01:15:24,240 INFO L933 BasicCegarLoop]: 6803 mSDtfsCounter, 6648 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6648 SdHoareTripleChecker+Valid, 6939 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:24,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6648 Valid, 6939 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:24,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:24,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:24,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5785362540329428) internal successors, (9296), 5891 states have internal predecessors, (9296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:24,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9296 transitions. [2022-01-11 01:15:24,431 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9296 transitions. Word has length 176 [2022-01-11 01:15:24,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:24,431 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9296 transitions. [2022-01-11 01:15:24,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:24,431 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9296 transitions. [2022-01-11 01:15:24,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:24,432 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:24,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:24,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 01:15:24,433 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:24,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:24,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1313608975, now seen corresponding path program 1 times [2022-01-11 01:15:24,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:24,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792135653] [2022-01-11 01:15:24,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:24,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:24,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:24,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:24,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:24,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792135653] [2022-01-11 01:15:24,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792135653] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:24,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:24,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:24,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716818850] [2022-01-11 01:15:24,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:24,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:24,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:24,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:24,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:24,477 INFO L87 Difference]: Start difference. First operand 5892 states and 9296 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:24,687 INFO L93 Difference]: Finished difference Result 9626 states and 14582 transitions. [2022-01-11 01:15:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:24,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:24,697 INFO L225 Difference]: With dead ends: 9626 [2022-01-11 01:15:24,697 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:24,702 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 [2022-01-11 01:15:24,702 INFO L933 BasicCegarLoop]: 6782 mSDtfsCounter, 6627 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6627 SdHoareTripleChecker+Valid, 6917 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:24,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6627 Valid, 6917 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:24,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:24,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5720835455934794) internal successors, (9258), 5891 states have internal predecessors, (9258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:24,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9258 transitions. [2022-01-11 01:15:24,860 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9258 transitions. Word has length 176 [2022-01-11 01:15:24,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:24,860 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9258 transitions. [2022-01-11 01:15:24,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:24,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9258 transitions. [2022-01-11 01:15:24,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:24,861 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:24,861 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:24,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 01:15:24,864 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:24,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:24,864 INFO L85 PathProgramCache]: Analyzing trace with hash -374014448, now seen corresponding path program 1 times [2022-01-11 01:15:24,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:24,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318899606] [2022-01-11 01:15:24,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:24,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:24,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:24,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318899606] [2022-01-11 01:15:24,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318899606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:24,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:24,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:24,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473609526] [2022-01-11 01:15:24,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:24,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:24,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:24,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:24,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:24,926 INFO L87 Difference]: Start difference. First operand 5892 states and 9258 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:25,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:25,111 INFO L93 Difference]: Finished difference Result 9625 states and 14505 transitions. [2022-01-11 01:15:25,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:25,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:25,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:25,120 INFO L225 Difference]: With dead ends: 9625 [2022-01-11 01:15:25,120 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:25,126 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 [2022-01-11 01:15:25,126 INFO L933 BasicCegarLoop]: 6761 mSDtfsCounter, 6606 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6606 SdHoareTripleChecker+Valid, 6895 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:25,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6606 Valid, 6895 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:25,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:25,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.565630837154016) internal successors, (9220), 5891 states have internal predecessors, (9220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:25,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9220 transitions. [2022-01-11 01:15:25,316 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9220 transitions. Word has length 176 [2022-01-11 01:15:25,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:25,316 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9220 transitions. [2022-01-11 01:15:25,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:25,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9220 transitions. [2022-01-11 01:15:25,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:25,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:25,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:25,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 01:15:25,318 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:25,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:25,319 INFO L85 PathProgramCache]: Analyzing trace with hash -2107603793, now seen corresponding path program 1 times [2022-01-11 01:15:25,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:25,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405949997] [2022-01-11 01:15:25,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:25,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:25,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:25,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405949997] [2022-01-11 01:15:25,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405949997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:25,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:25,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:25,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361222107] [2022-01-11 01:15:25,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:25,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:25,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:25,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:25,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:25,368 INFO L87 Difference]: Start difference. First operand 5892 states and 9220 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:25,605 INFO L93 Difference]: Finished difference Result 9624 states and 14428 transitions. [2022-01-11 01:15:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:25,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:25,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:25,612 INFO L225 Difference]: With dead ends: 9624 [2022-01-11 01:15:25,612 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:25,617 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 [2022-01-11 01:15:25,618 INFO L933 BasicCegarLoop]: 6740 mSDtfsCounter, 6585 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6585 SdHoareTripleChecker+Valid, 6873 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:25,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6585 Valid, 6873 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5591781287145525) internal successors, (9182), 5891 states have internal predecessors, (9182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:25,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9182 transitions. [2022-01-11 01:15:25,820 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9182 transitions. Word has length 176 [2022-01-11 01:15:25,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:25,820 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9182 transitions. [2022-01-11 01:15:25,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:25,820 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9182 transitions. [2022-01-11 01:15:25,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:25,821 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:25,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:25,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 01:15:25,822 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:25,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:25,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1898985038, now seen corresponding path program 1 times [2022-01-11 01:15:25,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:25,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662057370] [2022-01-11 01:15:25,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:25,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:25,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:25,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662057370] [2022-01-11 01:15:25,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662057370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:25,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:25,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:25,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15410305] [2022-01-11 01:15:25,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:25,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:25,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:25,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:25,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:25,868 INFO L87 Difference]: Start difference. First operand 5892 states and 9182 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:26,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:26,133 INFO L93 Difference]: Finished difference Result 9623 states and 14351 transitions. [2022-01-11 01:15:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:26,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:26,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:26,140 INFO L225 Difference]: With dead ends: 9623 [2022-01-11 01:15:26,141 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:26,144 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 [2022-01-11 01:15:26,144 INFO L933 BasicCegarLoop]: 6719 mSDtfsCounter, 6564 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6564 SdHoareTripleChecker+Valid, 6851 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:26,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6564 Valid, 6851 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:26,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.552725420275089) internal successors, (9144), 5891 states have internal predecessors, (9144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9144 transitions. [2022-01-11 01:15:26,327 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9144 transitions. Word has length 176 [2022-01-11 01:15:26,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:26,327 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9144 transitions. [2022-01-11 01:15:26,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:26,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9144 transitions. [2022-01-11 01:15:26,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:26,328 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:26,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:26,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-11 01:15:26,328 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:26,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:26,329 INFO L85 PathProgramCache]: Analyzing trace with hash 2111982445, now seen corresponding path program 1 times [2022-01-11 01:15:26,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:26,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641832590] [2022-01-11 01:15:26,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:26,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:26,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:26,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:26,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641832590] [2022-01-11 01:15:26,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641832590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:26,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:26,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:26,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396299293] [2022-01-11 01:15:26,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:26,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:26,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:26,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:26,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:26,377 INFO L87 Difference]: Start difference. First operand 5892 states and 9144 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:26,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:26,598 INFO L93 Difference]: Finished difference Result 9622 states and 14274 transitions. [2022-01-11 01:15:26,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:26,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:26,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:26,605 INFO L225 Difference]: With dead ends: 9622 [2022-01-11 01:15:26,605 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:26,609 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 [2022-01-11 01:15:26,609 INFO L933 BasicCegarLoop]: 6698 mSDtfsCounter, 6543 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6543 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:26,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6543 Valid, 6829 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:26,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:26,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5462727118356256) internal successors, (9106), 5891 states have internal predecessors, (9106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:26,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9106 transitions. [2022-01-11 01:15:26,763 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9106 transitions. Word has length 176 [2022-01-11 01:15:26,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:26,764 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9106 transitions. [2022-01-11 01:15:26,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:26,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9106 transitions. [2022-01-11 01:15:26,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:26,765 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:26,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:26,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-11 01:15:26,765 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:26,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:26,766 INFO L85 PathProgramCache]: Analyzing trace with hash -167486580, now seen corresponding path program 1 times [2022-01-11 01:15:26,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:26,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473457762] [2022-01-11 01:15:26,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:26,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:26,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:26,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473457762] [2022-01-11 01:15:26,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473457762] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:26,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:26,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:26,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814496457] [2022-01-11 01:15:26,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:26,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:26,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:26,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:26,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:26,811 INFO L87 Difference]: Start difference. First operand 5892 states and 9106 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:27,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:27,026 INFO L93 Difference]: Finished difference Result 9621 states and 14197 transitions. [2022-01-11 01:15:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:27,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:27,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:27,032 INFO L225 Difference]: With dead ends: 9621 [2022-01-11 01:15:27,032 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:27,036 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 [2022-01-11 01:15:27,036 INFO L933 BasicCegarLoop]: 6677 mSDtfsCounter, 6522 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6522 SdHoareTripleChecker+Valid, 6807 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:27,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6522 Valid, 6807 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:27,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:27,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:27,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5398200033961624) internal successors, (9068), 5891 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9068 transitions. [2022-01-11 01:15:27,214 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9068 transitions. Word has length 176 [2022-01-11 01:15:27,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:27,214 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9068 transitions. [2022-01-11 01:15:27,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:27,214 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9068 transitions. [2022-01-11 01:15:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:27,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:27,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:27,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-11 01:15:27,216 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:27,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:27,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1953186005, now seen corresponding path program 1 times [2022-01-11 01:15:27,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:27,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698218957] [2022-01-11 01:15:27,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:27,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:27,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:27,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:27,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698218957] [2022-01-11 01:15:27,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698218957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:27,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:27,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:27,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779893748] [2022-01-11 01:15:27,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:27,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:27,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:27,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:27,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:27,261 INFO L87 Difference]: Start difference. First operand 5892 states and 9068 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:27,517 INFO L93 Difference]: Finished difference Result 9620 states and 14120 transitions. [2022-01-11 01:15:27,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:27,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:27,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:27,523 INFO L225 Difference]: With dead ends: 9620 [2022-01-11 01:15:27,524 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:27,528 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 [2022-01-11 01:15:27,528 INFO L933 BasicCegarLoop]: 6656 mSDtfsCounter, 6501 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6501 SdHoareTripleChecker+Valid, 6785 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:27,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6501 Valid, 6785 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:27,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:27,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:27,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.533367294956699) internal successors, (9030), 5891 states have internal predecessors, (9030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:27,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 9030 transitions. [2022-01-11 01:15:27,681 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 9030 transitions. Word has length 176 [2022-01-11 01:15:27,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:27,681 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 9030 transitions. [2022-01-11 01:15:27,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 9030 transitions. [2022-01-11 01:15:27,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:27,682 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:27,683 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:27,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-11 01:15:27,683 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:27,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:27,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1236069834, now seen corresponding path program 1 times [2022-01-11 01:15:27,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:27,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900785169] [2022-01-11 01:15:27,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:27,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:27,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:27,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900785169] [2022-01-11 01:15:27,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900785169] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:27,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:27,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:27,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928981897] [2022-01-11 01:15:27,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:27,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:27,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:27,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:27,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:27,728 INFO L87 Difference]: Start difference. First operand 5892 states and 9030 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:27,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:27,992 INFO L93 Difference]: Finished difference Result 9618 states and 14041 transitions. [2022-01-11 01:15:27,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:27,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:27,999 INFO L225 Difference]: With dead ends: 9618 [2022-01-11 01:15:27,999 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:28,004 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 [2022-01-11 01:15:28,005 INFO L933 BasicCegarLoop]: 6635 mSDtfsCounter, 6479 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6479 SdHoareTripleChecker+Valid, 6763 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:28,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6479 Valid, 6763 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:28,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:28,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5269145865172356) internal successors, (8992), 5891 states have internal predecessors, (8992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:28,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8992 transitions. [2022-01-11 01:15:28,175 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8992 transitions. Word has length 176 [2022-01-11 01:15:28,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:28,175 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8992 transitions. [2022-01-11 01:15:28,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:28,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8992 transitions. [2022-01-11 01:15:28,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:28,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:28,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:28,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-11 01:15:28,176 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:28,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:28,177 INFO L85 PathProgramCache]: Analyzing trace with hash -33438806, now seen corresponding path program 1 times [2022-01-11 01:15:28,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:28,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250337145] [2022-01-11 01:15:28,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:28,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:28,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:28,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:28,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250337145] [2022-01-11 01:15:28,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250337145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:28,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:28,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:28,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113831995] [2022-01-11 01:15:28,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:28,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:28,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:28,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:28,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:28,223 INFO L87 Difference]: Start difference. First operand 5892 states and 8992 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:28,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:28,460 INFO L93 Difference]: Finished difference Result 9617 states and 13964 transitions. [2022-01-11 01:15:28,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:28,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:28,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:28,467 INFO L225 Difference]: With dead ends: 9617 [2022-01-11 01:15:28,467 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:28,471 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 [2022-01-11 01:15:28,471 INFO L933 BasicCegarLoop]: 6614 mSDtfsCounter, 6458 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6458 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:28,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6458 Valid, 6741 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:28,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:28,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:28,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.520461878077772) internal successors, (8954), 5891 states have internal predecessors, (8954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:28,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8954 transitions. [2022-01-11 01:15:28,646 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8954 transitions. Word has length 176 [2022-01-11 01:15:28,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:28,646 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8954 transitions. [2022-01-11 01:15:28,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:28,646 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8954 transitions. [2022-01-11 01:15:28,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:28,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:28,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:28,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-11 01:15:28,647 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:28,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:28,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1079379017, now seen corresponding path program 1 times [2022-01-11 01:15:28,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:28,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613249878] [2022-01-11 01:15:28,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:28,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:28,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:28,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613249878] [2022-01-11 01:15:28,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613249878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:28,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:28,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:28,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544380293] [2022-01-11 01:15:28,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:28,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:28,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:28,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:28,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:28,693 INFO L87 Difference]: Start difference. First operand 5892 states and 8954 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:28,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:28,963 INFO L93 Difference]: Finished difference Result 9616 states and 13887 transitions. [2022-01-11 01:15:28,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:28,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:28,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:28,969 INFO L225 Difference]: With dead ends: 9616 [2022-01-11 01:15:28,969 INFO L226 Difference]: Without dead ends: 5892 [2022-01-11 01:15:28,973 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 [2022-01-11 01:15:28,973 INFO L933 BasicCegarLoop]: 6593 mSDtfsCounter, 6437 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6437 SdHoareTripleChecker+Valid, 6719 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:28,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6437 Valid, 6719 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:28,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-01-11 01:15:29,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-01-11 01:15:29,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 5889 states have (on average 1.5140091696383087) internal successors, (8916), 5891 states have internal predecessors, (8916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:29,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8916 transitions. [2022-01-11 01:15:29,147 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8916 transitions. Word has length 176 [2022-01-11 01:15:29,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:29,147 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8916 transitions. [2022-01-11 01:15:29,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:29,147 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8916 transitions. [2022-01-11 01:15:29,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:29,148 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:29,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:29,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-11 01:15:29,148 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:29,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2026221544, now seen corresponding path program 1 times [2022-01-11 01:15:29,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:29,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340151731] [2022-01-11 01:15:29,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:29,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:29,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:29,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340151731] [2022-01-11 01:15:29,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340151731] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:29,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:29,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:15:29,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042403516] [2022-01-11 01:15:29,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:29,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:15:29,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:29,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:15:29,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:15:29,231 INFO L87 Difference]: Start difference. First operand 5892 states and 8916 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:29,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:29,871 INFO L93 Difference]: Finished difference Result 10830 states and 15488 transitions. [2022-01-11 01:15:29,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:15:29,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:29,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:29,881 INFO L225 Difference]: With dead ends: 10830 [2022-01-11 01:15:29,881 INFO L226 Difference]: Without dead ends: 7120 [2022-01-11 01:15:29,885 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 [2022-01-11 01:15:29,886 INFO L933 BasicCegarLoop]: 6774 mSDtfsCounter, 7477 mSDsluCounter, 14429 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7477 SdHoareTripleChecker+Valid, 21203 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:29,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7477 Valid, 21203 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7120 states. [2022-01-11 01:15:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7120 to 5898. [2022-01-11 01:15:30,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5898 states, 5895 states have (on average 1.5083969465648854) internal successors, (8892), 5897 states have internal predecessors, (8892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:30,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5898 states to 5898 states and 8892 transitions. [2022-01-11 01:15:30,171 INFO L78 Accepts]: Start accepts. Automaton has 5898 states and 8892 transitions. Word has length 176 [2022-01-11 01:15:30,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:30,171 INFO L470 AbstractCegarLoop]: Abstraction has 5898 states and 8892 transitions. [2022-01-11 01:15:30,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:30,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5898 states and 8892 transitions. [2022-01-11 01:15:30,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:30,173 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:30,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:30,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-11 01:15:30,173 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:30,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:30,173 INFO L85 PathProgramCache]: Analyzing trace with hash -982263447, now seen corresponding path program 1 times [2022-01-11 01:15:30,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:30,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584527962] [2022-01-11 01:15:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:30,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:30,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:30,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:30,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584527962] [2022-01-11 01:15:30,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584527962] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:30,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:30,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:15:30,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317288696] [2022-01-11 01:15:30,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:30,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:15:30,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:30,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:15:30,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:15:30,236 INFO L87 Difference]: Start difference. First operand 5898 states and 8892 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:30,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:30,846 INFO L93 Difference]: Finished difference Result 11719 states and 16550 transitions. [2022-01-11 01:15:30,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:15:30,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:30,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:30,855 INFO L225 Difference]: With dead ends: 11719 [2022-01-11 01:15:30,856 INFO L226 Difference]: Without dead ends: 8038 [2022-01-11 01:15:30,860 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 [2022-01-11 01:15:30,860 INFO L933 BasicCegarLoop]: 6666 mSDtfsCounter, 6587 mSDsluCounter, 16373 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6587 SdHoareTripleChecker+Valid, 23039 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:30,860 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6587 Valid, 23039 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8038 states. [2022-01-11 01:15:31,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8038 to 5904. [2022-01-11 01:15:31,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5904 states, 5901 states have (on average 1.5027961362480935) internal successors, (8868), 5903 states have internal predecessors, (8868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:31,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5904 states to 5904 states and 8868 transitions. [2022-01-11 01:15:31,130 INFO L78 Accepts]: Start accepts. Automaton has 5904 states and 8868 transitions. Word has length 176 [2022-01-11 01:15:31,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:31,130 INFO L470 AbstractCegarLoop]: Abstraction has 5904 states and 8868 transitions. [2022-01-11 01:15:31,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:31,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5904 states and 8868 transitions. [2022-01-11 01:15:31,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:31,131 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:31,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:31,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-11 01:15:31,131 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:31,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:31,132 INFO L85 PathProgramCache]: Analyzing trace with hash 872082090, now seen corresponding path program 1 times [2022-01-11 01:15:31,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:31,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610677083] [2022-01-11 01:15:31,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:31,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:31,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:31,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:31,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610677083] [2022-01-11 01:15:31,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610677083] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:31,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:31,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:31,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195403692] [2022-01-11 01:15:31,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:31,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:31,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:31,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:31,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:31,196 INFO L87 Difference]: Start difference. First operand 5904 states and 8868 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:31,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:31,879 INFO L93 Difference]: Finished difference Result 12942 states and 17995 transitions. [2022-01-11 01:15:31,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:31,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:31,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:31,888 INFO L225 Difference]: With dead ends: 12942 [2022-01-11 01:15:31,888 INFO L226 Difference]: Without dead ends: 9278 [2022-01-11 01:15:31,893 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 [2022-01-11 01:15:31,894 INFO L933 BasicCegarLoop]: 6562 mSDtfsCounter, 6292 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6292 SdHoareTripleChecker+Valid, 8931 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:31,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6292 Valid, 8931 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:31,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9278 states. [2022-01-11 01:15:32,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9278 to 9270. [2022-01-11 01:15:32,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9270 states, 9267 states have (on average 1.424409193913888) internal successors, (13200), 9269 states have internal predecessors, (13200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:32,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9270 states to 9270 states and 13200 transitions. [2022-01-11 01:15:32,284 INFO L78 Accepts]: Start accepts. Automaton has 9270 states and 13200 transitions. Word has length 176 [2022-01-11 01:15:32,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:32,284 INFO L470 AbstractCegarLoop]: Abstraction has 9270 states and 13200 transitions. [2022-01-11 01:15:32,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand 9270 states and 13200 transitions. [2022-01-11 01:15:32,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:32,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:32,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:32,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-11 01:15:32,286 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:32,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:32,286 INFO L85 PathProgramCache]: Analyzing trace with hash -467962199, now seen corresponding path program 1 times [2022-01-11 01:15:32,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:32,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709996805] [2022-01-11 01:15:32,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:32,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:32,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:32,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:32,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709996805] [2022-01-11 01:15:32,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709996805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:32,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:32,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:32,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508146359] [2022-01-11 01:15:32,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:32,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:32,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:32,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:32,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:32,355 INFO L87 Difference]: Start difference. First operand 9270 states and 13200 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:32,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:32,857 INFO L93 Difference]: Finished difference Result 16375 states and 22383 transitions. [2022-01-11 01:15:32,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:32,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:32,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:32,868 INFO L225 Difference]: With dead ends: 16375 [2022-01-11 01:15:32,868 INFO L226 Difference]: Without dead ends: 9270 [2022-01-11 01:15:32,874 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 [2022-01-11 01:15:32,875 INFO L933 BasicCegarLoop]: 6539 mSDtfsCounter, 6275 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6275 SdHoareTripleChecker+Valid, 6662 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:32,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6275 Valid, 6662 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:32,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9270 states. [2022-01-11 01:15:33,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9270 to 9270. [2022-01-11 01:15:33,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9270 states, 9267 states have (on average 1.4197690730549262) internal successors, (13157), 9269 states have internal predecessors, (13157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:33,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9270 states to 9270 states and 13157 transitions. [2022-01-11 01:15:33,342 INFO L78 Accepts]: Start accepts. Automaton has 9270 states and 13157 transitions. Word has length 176 [2022-01-11 01:15:33,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:33,342 INFO L470 AbstractCegarLoop]: Abstraction has 9270 states and 13157 transitions. [2022-01-11 01:15:33,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:33,342 INFO L276 IsEmpty]: Start isEmpty. Operand 9270 states and 13157 transitions. [2022-01-11 01:15:33,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-01-11 01:15:33,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:33,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:33,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-11 01:15:33,344 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:33,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:33,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1312434070, now seen corresponding path program 1 times [2022-01-11 01:15:33,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:33,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518996665] [2022-01-11 01:15:33,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:33,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:33,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:33,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518996665] [2022-01-11 01:15:33,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518996665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:33,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:33,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 01:15:33,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710179965] [2022-01-11 01:15:33,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:33,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:33,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:33,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:33,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:33,413 INFO L87 Difference]: Start difference. First operand 9270 states and 13157 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:34,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:34,263 INFO L93 Difference]: Finished difference Result 23256 states and 31167 transitions. [2022-01-11 01:15:34,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-01-11 01:15:34,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:34,282 INFO L225 Difference]: With dead ends: 23256 [2022-01-11 01:15:34,282 INFO L226 Difference]: Without dead ends: 16156 [2022-01-11 01:15:34,291 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 [2022-01-11 01:15:34,291 INFO L933 BasicCegarLoop]: 6539 mSDtfsCounter, 6337 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6337 SdHoareTripleChecker+Valid, 8890 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:34,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6337 Valid, 8890 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:34,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16156 states. [2022-01-11 01:15:35,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16156 to 15758. [2022-01-11 01:15:35,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15758 states, 15755 states have (on average 1.3622976832751508) internal successors, (21463), 15757 states have internal predecessors, (21463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15758 states to 15758 states and 21463 transitions. [2022-01-11 01:15:35,122 INFO L78 Accepts]: Start accepts. Automaton has 15758 states and 21463 transitions. Word has length 176 [2022-01-11 01:15:35,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:35,123 INFO L470 AbstractCegarLoop]: Abstraction has 15758 states and 21463 transitions. [2022-01-11 01:15:35,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 2 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand 15758 states and 21463 transitions. [2022-01-11 01:15:35,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-11 01:15:35,130 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:35,131 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:35,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-11 01:15:35,131 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:35,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:35,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1613416453, now seen corresponding path program 1 times [2022-01-11 01:15:35,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:35,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927333405] [2022-01-11 01:15:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:35,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:35,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:35,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927333405] [2022-01-11 01:15:35,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927333405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:35,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:35,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:15:35,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941716699] [2022-01-11 01:15:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:35,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:35,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:35,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:35,215 INFO L87 Difference]: Start difference. First operand 15758 states and 21463 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:36,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:36,890 INFO L93 Difference]: Finished difference Result 42599 states and 55958 transitions. [2022-01-11 01:15:36,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:36,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2022-01-11 01:15:36,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:36,932 INFO L225 Difference]: With dead ends: 42599 [2022-01-11 01:15:36,932 INFO L226 Difference]: Without dead ends: 29017 [2022-01-11 01:15:36,952 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 [2022-01-11 01:15:36,952 INFO L933 BasicCegarLoop]: 6536 mSDtfsCounter, 6380 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6380 SdHoareTripleChecker+Valid, 8887 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:36,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6380 Valid, 8887 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:36,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29017 states. [2022-01-11 01:15:38,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29017 to 28281. [2022-01-11 01:15:38,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28281 states, 28278 states have (on average 1.3255887969446212) internal successors, (37485), 28280 states have internal predecessors, (37485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:38,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28281 states to 28281 states and 37485 transitions. [2022-01-11 01:15:38,676 INFO L78 Accepts]: Start accepts. Automaton has 28281 states and 37485 transitions. Word has length 286 [2022-01-11 01:15:38,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:38,676 INFO L470 AbstractCegarLoop]: Abstraction has 28281 states and 37485 transitions. [2022-01-11 01:15:38,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:38,677 INFO L276 IsEmpty]: Start isEmpty. Operand 28281 states and 37485 transitions. [2022-01-11 01:15:38,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-11 01:15:38,690 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:38,691 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:38,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-11 01:15:38,691 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:38,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:38,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1329010747, now seen corresponding path program 1 times [2022-01-11 01:15:38,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:38,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557949893] [2022-01-11 01:15:38,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:38,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:38,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:38,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557949893] [2022-01-11 01:15:38,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557949893] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:38,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:38,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 01:15:38,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76057531] [2022-01-11 01:15:38,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:38,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 01:15:38,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:38,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 01:15:38,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 01:15:38,788 INFO L87 Difference]: Start difference. First operand 28281 states and 37485 transitions. Second operand has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:42,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:42,022 INFO L93 Difference]: Finished difference Result 78855 states and 102729 transitions. [2022-01-11 01:15:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 01:15:42,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2022-01-11 01:15:42,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:42,100 INFO L225 Difference]: With dead ends: 78855 [2022-01-11 01:15:42,100 INFO L226 Difference]: Without dead ends: 52837 [2022-01-11 01:15:42,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 01:15:42,122 INFO L933 BasicCegarLoop]: 6495 mSDtfsCounter, 5292 mSDsluCounter, 19089 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5292 SdHoareTripleChecker+Valid, 25584 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:42,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5292 Valid, 25584 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 01:15:42,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52837 states. [2022-01-11 01:15:44,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52837 to 28329. [2022-01-11 01:15:44,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28329 states, 28326 states have (on average 1.3176586881310457) internal successors, (37324), 28328 states have internal predecessors, (37324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28329 states to 28329 states and 37324 transitions. [2022-01-11 01:15:44,303 INFO L78 Accepts]: Start accepts. Automaton has 28329 states and 37324 transitions. Word has length 286 [2022-01-11 01:15:44,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:44,304 INFO L470 AbstractCegarLoop]: Abstraction has 28329 states and 37324 transitions. [2022-01-11 01:15:44,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.2) internal successors, (286), 5 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:44,304 INFO L276 IsEmpty]: Start isEmpty. Operand 28329 states and 37324 transitions. [2022-01-11 01:15:44,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-11 01:15:44,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:44,313 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:44,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-11 01:15:44,313 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:44,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:44,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1137376637, now seen corresponding path program 1 times [2022-01-11 01:15:44,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:44,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144744997] [2022-01-11 01:15:44,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:44,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:44,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 01:15:44,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:44,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144744997] [2022-01-11 01:15:44,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144744997] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:44,402 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:44,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:15:44,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992133476] [2022-01-11 01:15:44,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:44,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:44,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:44,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:44,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:44,403 INFO L87 Difference]: Start difference. First operand 28329 states and 37324 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:48,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 01:15:48,113 INFO L93 Difference]: Finished difference Result 79127 states and 101584 transitions. [2022-01-11 01:15:48,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 01:15:48,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2022-01-11 01:15:48,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 01:15:48,194 INFO L225 Difference]: With dead ends: 79127 [2022-01-11 01:15:48,194 INFO L226 Difference]: Without dead ends: 53091 [2022-01-11 01:15:48,222 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 [2022-01-11 01:15:48,222 INFO L933 BasicCegarLoop]: 8214 mSDtfsCounter, 6071 mSDsluCounter, 2561 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6071 SdHoareTripleChecker+Valid, 10775 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 01:15:48,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6071 Valid, 10775 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 01:15:48,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53091 states. [2022-01-11 01:15:52,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53091 to 53087. [2022-01-11 01:15:52,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53087 states, 53084 states have (on average 1.2877703262753373) internal successors, (68360), 53086 states have internal predecessors, (68360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:52,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53087 states to 53087 states and 68360 transitions. [2022-01-11 01:15:52,245 INFO L78 Accepts]: Start accepts. Automaton has 53087 states and 68360 transitions. Word has length 286 [2022-01-11 01:15:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 01:15:52,246 INFO L470 AbstractCegarLoop]: Abstraction has 53087 states and 68360 transitions. [2022-01-11 01:15:52,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 01:15:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 53087 states and 68360 transitions. [2022-01-11 01:15:52,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-01-11 01:15:52,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 01:15:52,265 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 01:15:52,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-11 01:15:52,265 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-11 01:15:52,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 01:15:52,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2008198236, now seen corresponding path program 1 times [2022-01-11 01:15:52,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 01:15:52,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158419746] [2022-01-11 01:15:52,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 01:15:52,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 01:15:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 01:15:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-11 01:15:52,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 01:15:52,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158419746] [2022-01-11 01:15:52,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158419746] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 01:15:52,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 01:15:52,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 01:15:52,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056325379] [2022-01-11 01:15:52,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 01:15:52,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 01:15:52,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 01:15:52,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 01:15:52,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 01:15:52,318 INFO L87 Difference]: Start difference. First operand 53087 states and 68360 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)