/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 02:04:58,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 02:04:58,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 02:04:58,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 02:04:58,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 02:04:58,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 02:04:58,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 02:04:58,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 02:04:58,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 02:04:58,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 02:04:58,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 02:04:58,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 02:04:58,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 02:04:58,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 02:04:58,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 02:04:58,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 02:04:58,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 02:04:58,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 02:04:58,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 02:04:58,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 02:04:58,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 02:04:58,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 02:04:58,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 02:04:58,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 02:04:58,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 02:04:58,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 02:04:58,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 02:04:58,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 02:04:58,750 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 02:04:58,781 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 02:04:58,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 02:04:58,782 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 02:04:58,782 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 02:04:58,783 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 02:04:58,783 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 02:04:58,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 02:04:58,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 02:04:58,783 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 02:04:58,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 02:04:58,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 02:04:58,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 02:04:58,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 02:04:58,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 02:04:58,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 02:04:58,785 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 02:04:58,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 02:04:58,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 02:04:58,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 02:04:58,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 02:04:58,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 02:04:58,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:04:58,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 02:04:58,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 02:04:58,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 02:04:58,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 02:04:58,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 02:04:58,787 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 02:04:58,787 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 02:04:58,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 02:04:58,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 02:04:58,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 02:04:58,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 02:04:58,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 02:04:58,991 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 02:04:58,991 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 02:04:58,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c [2022-01-10 02:04:59,047 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f7fd617/e977b728053f40a9b2c30f428f652a67/FLAG0b70d2b55 [2022-01-10 02:04:59,976 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 02:04:59,976 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.10.cil-2.c [2022-01-10 02:05:00,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f7fd617/e977b728053f40a9b2c30f428f652a67/FLAG0b70d2b55 [2022-01-10 02:05:00,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f7fd617/e977b728053f40a9b2c30f428f652a67 [2022-01-10 02:05:00,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 02:05:00,087 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 02:05:00,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 02:05:00,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 02:05:00,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 02:05:00,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:05:00" (1/1) ... [2022-01-10 02:05:00,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff9f57f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:00, skipping insertion in model container [2022-01-10 02:05:00,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:05:00" (1/1) ... [2022-01-10 02:05:00,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 02:05:00,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 02:05:01,858 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_label46+token_ring.10.cil-2.c[382357,382370] [2022-01-10 02:05:01,883 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_label46+token_ring.10.cil-2.c[383339,383352] [2022-01-10 02:05:02,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:05:02,174 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 02:05:02,925 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_label46+token_ring.10.cil-2.c[382357,382370] [2022-01-10 02:05:02,928 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_label46+token_ring.10.cil-2.c[383339,383352] [2022-01-10 02:05:02,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 02:05:03,010 INFO L208 MainTranslator]: Completed translation [2022-01-10 02:05:03,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03 WrapperNode [2022-01-10 02:05:03,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 02:05:03,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 02:05:03,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 02:05:03,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 02:05:03,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,454 INFO L137 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13083 [2022-01-10 02:05:03,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 02:05:03,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 02:05:03,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 02:05:03,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 02:05:03,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 02:05:03,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 02:05:03,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 02:05:03,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 02:05:03,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (1/1) ... [2022-01-10 02:05:03,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 02:05:03,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 02:05:03,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 02:05:03,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 02:05:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 02:05:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-01-10 02:05:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-01-10 02:05:03,989 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-01-10 02:05:03,989 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-01-10 02:05:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-01-10 02:05:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-01-10 02:05:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-01-10 02:05:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-01-10 02:05:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-01-10 02:05:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-01-10 02:05:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-01-10 02:05:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-01-10 02:05:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 02:05:03,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 02:05:03,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 02:05:04,136 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 02:05:04,137 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 02:05:10,185 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 02:05:10,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 02:05:10,219 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-01-10 02:05:10,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:05:10 BoogieIcfgContainer [2022-01-10 02:05:10,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 02:05:10,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 02:05:10,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 02:05:10,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 02:05:10,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:05:00" (1/3) ... [2022-01-10 02:05:10,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a9f8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:05:10, skipping insertion in model container [2022-01-10 02:05:10,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:05:03" (2/3) ... [2022-01-10 02:05:10,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a9f8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:05:10, skipping insertion in model container [2022-01-10 02:05:10,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:05:10" (3/3) ... [2022-01-10 02:05:10,236 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.10.cil-2.c [2022-01-10 02:05:10,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 02:05:10,241 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 02:05:10,287 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 02:05:10,293 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 02:05:10,293 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 02:05:10,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 2515 states, 2482 states have (on average 1.8456889605157132) internal successors, (4581), 2485 states have internal predecessors, (4581), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-01-10 02:05:10,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:10,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:10,447 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] [2022-01-10 02:05:10,447 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:10,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:10,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1879597445, now seen corresponding path program 1 times [2022-01-10 02:05:10,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:10,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303217761] [2022-01-10 02:05:10,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:10,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:10,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:10,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:11,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:11,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303217761] [2022-01-10 02:05:11,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303217761] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:11,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:11,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 02:05:11,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123496053] [2022-01-10 02:05:11,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:11,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 02:05:11,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:11,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 02:05:11,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 02:05:11,066 INFO L87 Difference]: Start difference. First operand has 2515 states, 2482 states have (on average 1.8456889605157132) internal successors, (4581), 2485 states have internal predecessors, (4581), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:12,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:12,542 INFO L93 Difference]: Finished difference Result 5140 states and 9446 transitions. [2022-01-10 02:05:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 02:05:12,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-01-10 02:05:12,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:12,568 INFO L225 Difference]: With dead ends: 5140 [2022-01-10 02:05:12,569 INFO L226 Difference]: Without dead ends: 2568 [2022-01-10 02:05:12,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 02:05:12,580 INFO L933 BasicCegarLoop]: 4589 mSDtfsCounter, 882 mSDsluCounter, 12413 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 17002 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:12,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [904 Valid, 17002 Invalid, 674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 02:05:12,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2022-01-10 02:05:12,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 2448. [2022-01-10 02:05:12,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2416 states have (on average 1.830298013245033) internal successors, (4422), 2418 states have internal predecessors, (4422), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-01-10 02:05:12,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 4470 transitions. [2022-01-10 02:05:12,703 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 4470 transitions. Word has length 156 [2022-01-10 02:05:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:12,703 INFO L470 AbstractCegarLoop]: Abstraction has 2448 states and 4470 transitions. [2022-01-10 02:05:12,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:12,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 4470 transitions. [2022-01-10 02:05:12,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:12,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:12,707 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] [2022-01-10 02:05:12,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 02:05:12,707 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:12,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:12,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1988815353, now seen corresponding path program 1 times [2022-01-10 02:05:12,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:12,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588521596] [2022-01-10 02:05:12,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:12,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:12,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:12,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:12,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:12,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:12,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:12,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:12,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:12,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588521596] [2022-01-10 02:05:12,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588521596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:12,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:12,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:12,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004475385] [2022-01-10 02:05:12,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:12,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:12,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:12,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:12,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:12,973 INFO L87 Difference]: Start difference. First operand 2448 states and 4470 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:16,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:16,105 INFO L93 Difference]: Finished difference Result 3341 states and 5922 transitions. [2022-01-10 02:05:16,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:05:16,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-01-10 02:05:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:16,130 INFO L225 Difference]: With dead ends: 3341 [2022-01-10 02:05:16,131 INFO L226 Difference]: Without dead ends: 3032 [2022-01-10 02:05:16,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:05:16,138 INFO L933 BasicCegarLoop]: 4828 mSDtfsCounter, 5220 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5237 SdHoareTripleChecker+Valid, 22278 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:16,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5237 Valid, 22278 Invalid, 2881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [77 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-01-10 02:05:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-01-10 02:05:16,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2775. [2022-01-10 02:05:16,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2714 states have (on average 1.8043478260869565) internal successors, (4897), 2718 states have internal predecessors, (4897), 45 states have call successors, (45), 12 states have call predecessors, (45), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2022-01-10 02:05:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 4994 transitions. [2022-01-10 02:05:16,243 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 4994 transitions. Word has length 156 [2022-01-10 02:05:16,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:16,244 INFO L470 AbstractCegarLoop]: Abstraction has 2775 states and 4994 transitions. [2022-01-10 02:05:16,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:16,245 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 4994 transitions. [2022-01-10 02:05:16,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:16,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:16,248 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] [2022-01-10 02:05:16,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 02:05:16,248 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:16,249 INFO L85 PathProgramCache]: Analyzing trace with hash 371374903, now seen corresponding path program 1 times [2022-01-10 02:05:16,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:16,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480012538] [2022-01-10 02:05:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:16,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:16,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:16,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:16,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:16,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:16,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:16,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:16,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:16,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480012538] [2022-01-10 02:05:16,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480012538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:16,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:16,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:16,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264444558] [2022-01-10 02:05:16,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:16,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:16,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:16,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:16,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:16,430 INFO L87 Difference]: Start difference. First operand 2775 states and 4994 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:19,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:19,351 INFO L93 Difference]: Finished difference Result 4476 states and 7734 transitions. [2022-01-10 02:05:19,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:05:19,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-01-10 02:05:19,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:19,369 INFO L225 Difference]: With dead ends: 4476 [2022-01-10 02:05:19,369 INFO L226 Difference]: Without dead ends: 3842 [2022-01-10 02:05:19,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:05:19,373 INFO L933 BasicCegarLoop]: 4755 mSDtfsCounter, 5260 mSDsluCounter, 17375 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5277 SdHoareTripleChecker+Valid, 22130 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:19,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5277 Valid, 22130 Invalid, 2740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 02:05:19,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2022-01-10 02:05:19,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3377. [2022-01-10 02:05:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3264 states have (on average 1.7634803921568627) internal successors, (5756), 3270 states have internal predecessors, (5756), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2022-01-10 02:05:19,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 5939 transitions. [2022-01-10 02:05:19,495 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 5939 transitions. Word has length 156 [2022-01-10 02:05:19,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:19,495 INFO L470 AbstractCegarLoop]: Abstraction has 3377 states and 5939 transitions. [2022-01-10 02:05:19,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:19,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 5939 transitions. [2022-01-10 02:05:19,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:19,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:19,498 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] [2022-01-10 02:05:19,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 02:05:19,499 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:19,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:19,500 INFO L85 PathProgramCache]: Analyzing trace with hash 734841401, now seen corresponding path program 1 times [2022-01-10 02:05:19,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:19,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649930176] [2022-01-10 02:05:19,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:19,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:19,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:19,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:19,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:19,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:19,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:19,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:19,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649930176] [2022-01-10 02:05:19,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649930176] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:19,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:19,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:19,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688988354] [2022-01-10 02:05:19,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:19,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:19,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:19,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:19,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:19,640 INFO L87 Difference]: Start difference. First operand 3377 states and 5939 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:22,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:22,403 INFO L93 Difference]: Finished difference Result 6696 states and 11267 transitions. [2022-01-10 02:05:22,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:05:22,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-01-10 02:05:22,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:22,430 INFO L225 Difference]: With dead ends: 6696 [2022-01-10 02:05:22,430 INFO L226 Difference]: Without dead ends: 5460 [2022-01-10 02:05:22,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:05:22,444 INFO L933 BasicCegarLoop]: 4819 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22269 SdHoareTripleChecker+Invalid, 2880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:22,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5236 Valid, 22269 Invalid, 2880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-01-10 02:05:22,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5460 states. [2022-01-10 02:05:22,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5460 to 4583. [2022-01-10 02:05:22,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4366 states have (on average 1.712322491983509) internal successors, (7476), 4376 states have internal predecessors, (7476), 159 states have call successors, (159), 48 states have call predecessors, (159), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2022-01-10 02:05:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 7837 transitions. [2022-01-10 02:05:22,689 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 7837 transitions. Word has length 156 [2022-01-10 02:05:22,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:22,690 INFO L470 AbstractCegarLoop]: Abstraction has 4583 states and 7837 transitions. [2022-01-10 02:05:22,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:22,690 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 7837 transitions. [2022-01-10 02:05:22,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:22,694 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:22,694 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] [2022-01-10 02:05:22,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 02:05:22,694 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:22,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:22,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1023660791, now seen corresponding path program 1 times [2022-01-10 02:05:22,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:22,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378667493] [2022-01-10 02:05:22,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:22,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:22,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:22,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:22,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:22,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:22,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:22,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:22,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378667493] [2022-01-10 02:05:22,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378667493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:22,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:22,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:22,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854076767] [2022-01-10 02:05:22,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:22,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:22,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:22,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:22,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:22,826 INFO L87 Difference]: Start difference. First operand 4583 states and 7837 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:25,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:25,576 INFO L93 Difference]: Finished difference Result 11134 states and 18347 transitions. [2022-01-10 02:05:25,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:05:25,577 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-01-10 02:05:25,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:25,616 INFO L225 Difference]: With dead ends: 11134 [2022-01-10 02:05:25,616 INFO L226 Difference]: Without dead ends: 8692 [2022-01-10 02:05:25,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:05:25,629 INFO L933 BasicCegarLoop]: 4816 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22266 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:25,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5236 Valid, 22266 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-10 02:05:25,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8692 states. [2022-01-10 02:05:26,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8692 to 7001. [2022-01-10 02:05:26,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7001 states, 6576 states have (on average 1.6611922141119222) internal successors, (10924), 6594 states have internal predecessors, (10924), 311 states have call successors, (311), 96 states have call predecessors, (311), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2022-01-10 02:05:26,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 11659 transitions. [2022-01-10 02:05:26,077 INFO L78 Accepts]: Start accepts. Automaton has 7001 states and 11659 transitions. Word has length 156 [2022-01-10 02:05:26,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:26,078 INFO L470 AbstractCegarLoop]: Abstraction has 7001 states and 11659 transitions. [2022-01-10 02:05:26,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand 7001 states and 11659 transitions. [2022-01-10 02:05:26,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:26,084 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:26,084 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] [2022-01-10 02:05:26,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 02:05:26,084 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:26,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:26,085 INFO L85 PathProgramCache]: Analyzing trace with hash 478788217, now seen corresponding path program 1 times [2022-01-10 02:05:26,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:26,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441040237] [2022-01-10 02:05:26,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:26,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:26,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:26,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:26,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:26,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:26,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441040237] [2022-01-10 02:05:26,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441040237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:26,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:26,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:26,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000527897] [2022-01-10 02:05:26,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:26,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:26,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:26,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:26,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:26,250 INFO L87 Difference]: Start difference. First operand 7001 states and 11659 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:29,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:29,708 INFO L93 Difference]: Finished difference Result 20008 states and 32563 transitions. [2022-01-10 02:05:29,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:05:29,709 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-01-10 02:05:29,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:29,760 INFO L225 Difference]: With dead ends: 20008 [2022-01-10 02:05:29,760 INFO L226 Difference]: Without dead ends: 15148 [2022-01-10 02:05:29,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:05:29,779 INFO L933 BasicCegarLoop]: 4813 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22263 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:29,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5236 Valid, 22263 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2788 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-01-10 02:05:29,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15148 states. [2022-01-10 02:05:30,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15148 to 11851. [2022-01-10 02:05:30,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11851 states, 11010 states have (on average 1.620345140781108) internal successors, (17840), 11044 states have internal predecessors, (17840), 615 states have call successors, (615), 192 states have call predecessors, (615), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2022-01-10 02:05:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11851 states to 11851 states and 19377 transitions. [2022-01-10 02:05:30,431 INFO L78 Accepts]: Start accepts. Automaton has 11851 states and 19377 transitions. Word has length 156 [2022-01-10 02:05:30,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:30,432 INFO L470 AbstractCegarLoop]: Abstraction has 11851 states and 19377 transitions. [2022-01-10 02:05:30,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:30,432 INFO L276 IsEmpty]: Start isEmpty. Operand 11851 states and 19377 transitions. [2022-01-10 02:05:30,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:30,441 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:30,441 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] [2022-01-10 02:05:30,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 02:05:30,442 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:30,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:30,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1153948343, now seen corresponding path program 1 times [2022-01-10 02:05:30,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:30,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609549644] [2022-01-10 02:05:30,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:30,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:30,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:30,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:30,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:30,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:30,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:30,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609549644] [2022-01-10 02:05:30,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609549644] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:30,594 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:30,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:30,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544796276] [2022-01-10 02:05:30,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:30,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:30,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:30,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:30,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:30,596 INFO L87 Difference]: Start difference. First operand 11851 states and 19377 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:34,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:34,213 INFO L93 Difference]: Finished difference Result 37754 states and 61183 transitions. [2022-01-10 02:05:34,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:05:34,213 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-01-10 02:05:34,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:34,319 INFO L225 Difference]: With dead ends: 37754 [2022-01-10 02:05:34,319 INFO L226 Difference]: Without dead ends: 28044 [2022-01-10 02:05:34,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:05:34,365 INFO L933 BasicCegarLoop]: 4810 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22260 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:34,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5236 Valid, 22260 Invalid, 2862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [80 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-01-10 02:05:34,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28044 states. [2022-01-10 02:05:35,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28044 to 21581. [2022-01-10 02:05:35,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21581 states, 19908 states have (on average 1.593128390596745) internal successors, (31716), 19974 states have internal predecessors, (31716), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2022-01-10 02:05:35,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21581 states to 21581 states and 35019 transitions. [2022-01-10 02:05:35,615 INFO L78 Accepts]: Start accepts. Automaton has 21581 states and 35019 transitions. Word has length 156 [2022-01-10 02:05:35,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:35,615 INFO L470 AbstractCegarLoop]: Abstraction has 21581 states and 35019 transitions. [2022-01-10 02:05:35,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:35,615 INFO L276 IsEmpty]: Start isEmpty. Operand 21581 states and 35019 transitions. [2022-01-10 02:05:35,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:35,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:35,628 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] [2022-01-10 02:05:35,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 02:05:35,629 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:35,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:35,629 INFO L85 PathProgramCache]: Analyzing trace with hash 205896377, now seen corresponding path program 1 times [2022-01-10 02:05:35,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:35,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129355963] [2022-01-10 02:05:35,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:35,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:35,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:35,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:35,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:35,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:35,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:35,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:35,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129355963] [2022-01-10 02:05:35,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129355963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:35,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:35,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:35,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064573526] [2022-01-10 02:05:35,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:35,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:35,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:35,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:35,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:35,782 INFO L87 Difference]: Start difference. First operand 21581 states and 35019 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:38,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:38,557 INFO L93 Difference]: Finished difference Result 47941 states and 78380 transitions. [2022-01-10 02:05:38,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 02:05:38,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-01-10 02:05:38,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:38,664 INFO L225 Difference]: With dead ends: 47941 [2022-01-10 02:05:38,665 INFO L226 Difference]: Without dead ends: 28499 [2022-01-10 02:05:38,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-10 02:05:38,731 INFO L933 BasicCegarLoop]: 4496 mSDtfsCounter, 4916 mSDsluCounter, 16635 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4934 SdHoareTripleChecker+Valid, 21131 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:38,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4934 Valid, 21131 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 02:05:38,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28499 states. [2022-01-10 02:05:39,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28499 to 21581. [2022-01-10 02:05:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21581 states, 19908 states have (on average 1.5898633715089412) internal successors, (31651), 19974 states have internal predecessors, (31651), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2022-01-10 02:05:39,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21581 states to 21581 states and 34954 transitions. [2022-01-10 02:05:39,999 INFO L78 Accepts]: Start accepts. Automaton has 21581 states and 34954 transitions. Word has length 156 [2022-01-10 02:05:40,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:40,000 INFO L470 AbstractCegarLoop]: Abstraction has 21581 states and 34954 transitions. [2022-01-10 02:05:40,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:40,000 INFO L276 IsEmpty]: Start isEmpty. Operand 21581 states and 34954 transitions. [2022-01-10 02:05:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:40,014 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:40,014 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] [2022-01-10 02:05:40,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 02:05:40,014 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:40,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:40,015 INFO L85 PathProgramCache]: Analyzing trace with hash -378875273, now seen corresponding path program 1 times [2022-01-10 02:05:40,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:40,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184867028] [2022-01-10 02:05:40,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:40,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:40,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:40,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:40,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:40,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:40,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:40,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:40,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:40,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184867028] [2022-01-10 02:05:40,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184867028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:40,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:40,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:40,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239726036] [2022-01-10 02:05:40,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:40,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:40,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:40,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:40,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:40,171 INFO L87 Difference]: Start difference. First operand 21581 states and 34954 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:45,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 02:05:45,720 INFO L93 Difference]: Finished difference Result 73117 states and 118447 transitions. [2022-01-10 02:05:45,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 02:05:45,722 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-01-10 02:05:45,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 02:05:45,952 INFO L225 Difference]: With dead ends: 73117 [2022-01-10 02:05:45,953 INFO L226 Difference]: Without dead ends: 53677 [2022-01-10 02:05:46,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 02:05:46,020 INFO L933 BasicCegarLoop]: 4794 mSDtfsCounter, 5247 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5264 SdHoareTripleChecker+Valid, 22244 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-01-10 02:05:46,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5264 Valid, 22244 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-01-10 02:05:46,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53677 states. [2022-01-10 02:05:48,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53677 to 41230. [2022-01-10 02:05:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41230 states, 37893 states have (on average 1.5734304488955744) internal successors, (59622), 38023 states have internal predecessors, (59622), 2439 states have call successors, (2439), 768 states have call predecessors, (2439), 896 states have return successors, (4882), 2566 states have call predecessors, (4882), 2439 states have call successors, (4882) [2022-01-10 02:05:48,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41230 states to 41230 states and 66943 transitions. [2022-01-10 02:05:48,387 INFO L78 Accepts]: Start accepts. Automaton has 41230 states and 66943 transitions. Word has length 156 [2022-01-10 02:05:48,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 02:05:48,387 INFO L470 AbstractCegarLoop]: Abstraction has 41230 states and 66943 transitions. [2022-01-10 02:05:48,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-01-10 02:05:48,387 INFO L276 IsEmpty]: Start isEmpty. Operand 41230 states and 66943 transitions. [2022-01-10 02:05:48,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-01-10 02:05:48,411 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 02:05:48,411 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] [2022-01-10 02:05:48,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 02:05:48,411 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 02:05:48,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 02:05:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash -808533579, now seen corresponding path program 1 times [2022-01-10 02:05:48,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 02:05:48,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716268826] [2022-01-10 02:05:48,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 02:05:48,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 02:05:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:48,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 02:05:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:48,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-01-10 02:05:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:48,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 02:05:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-01-10 02:05:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:48,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-01-10 02:05:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 02:05:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 02:05:48,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 02:05:48,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716268826] [2022-01-10 02:05:48,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716268826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 02:05:48,534 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 02:05:48,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 02:05:48,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177658946] [2022-01-10 02:05:48,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 02:05:48,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 02:05:48,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 02:05:48,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 02:05:48,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 02:05:48,536 INFO L87 Difference]: Start difference. First operand 41230 states and 66943 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)