/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_label40+token_ring.06.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:55:10,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:55:10,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:55:10,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 01:55:10,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 01:55:10,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 01:55:10,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 01:55:10,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 01:55:10,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 01:55:10,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 01:55:10,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 01:55:10,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 01:55:10,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:55:10,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:55:10,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:55:10,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:55:10,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:55:10,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:55:10,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:55:10,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:55:11,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:55:11,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:55:11,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:55:11,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:55:11,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 01:55:11,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:55:11,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:55:11,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:55:11,030 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 01:55:11,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:55:11,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:55:11,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:55:11,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:55:11,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:55:11,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:55:11,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:55:11,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:55:11,053 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:55:11,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:55:11,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:55:11,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:55:11,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:55:11,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:55:11,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:55:11,054 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:55:11,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:55:11,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:55:11,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:55:11,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:55:11,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:55:11,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:55:11,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:55:11,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:55:11,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:55:11,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:55:11,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:55:11,055 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:55:11,055 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:55:11,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:55:11,056 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:55:11,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:55:11,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:55:11,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:55:11,243 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:55:11,244 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:55:11,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label40+token_ring.06.cil-2.c [2022-01-10 01:55:11,294 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8595937/5223d802475d4805a8ef16d703b0c6bb/FLAG86f43f29a [2022-01-10 01:55:12,034 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:55:12,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.06.cil-2.c [2022-01-10 01:55:12,086 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8595937/5223d802475d4805a8ef16d703b0c6bb/FLAG86f43f29a [2022-01-10 01:55:12,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8595937/5223d802475d4805a8ef16d703b0c6bb [2022-01-10 01:55:12,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:55:12,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:55:12,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:55:12,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:55:12,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:55:12,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:55:12" (1/1) ... [2022-01-10 01:55:12,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2c2186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:12, skipping insertion in model container [2022-01-10 01:55:12,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:55:12" (1/1) ... [2022-01-10 01:55:12,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:55:12,760 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:55:14,150 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_label40+token_ring.06.cil-2.c[377069,377082] [2022-01-10 01:55:14,185 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_label40+token_ring.06.cil-2.c[383339,383352] [2022-01-10 01:55:14,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:55:14,353 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:55:15,099 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_label40+token_ring.06.cil-2.c[377069,377082] [2022-01-10 01:55:15,118 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_label40+token_ring.06.cil-2.c[383339,383352] [2022-01-10 01:55:15,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:55:15,187 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:55:15,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15 WrapperNode [2022-01-10 01:55:15,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:55:15,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:55:15,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:55:15,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:55:15,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:15,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:15,646 INFO L137 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12851 [2022-01-10 01:55:15,646 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:55:15,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:55:15,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:55:15,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:55:15,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:15,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:15,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:15,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:15,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:16,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:16,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:16,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:55:16,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:55:16,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:55:16,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:55:16,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (1/1) ... [2022-01-10 01:55:16,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:55:16,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:55:16,228 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 01:55:16,247 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 01:55:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:55:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-01-10 01:55:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-01-10 01:55:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-01-10 01:55:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-01-10 01:55:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-01-10 01:55:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-01-10 01:55:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-01-10 01:55:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-01-10 01:55:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-01-10 01:55:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-01-10 01:55:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-01-10 01:55:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-01-10 01:55:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:55:16,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:55:16,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:55:16,374 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:55:16,375 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:55:21,926 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:55:21,951 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:55:21,951 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2022-01-10 01:55:21,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:55:21 BoogieIcfgContainer [2022-01-10 01:55:21,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:55:21,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:55:21,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:55:21,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:55:21,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:55:12" (1/3) ... [2022-01-10 01:55:21,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c54225c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:55:21, skipping insertion in model container [2022-01-10 01:55:21,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:55:15" (2/3) ... [2022-01-10 01:55:21,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c54225c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:55:21, skipping insertion in model container [2022-01-10 01:55:21,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:55:21" (3/3) ... [2022-01-10 01:55:21,969 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.06.cil-2.c [2022-01-10 01:55:21,973 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:55:21,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-10 01:55:22,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:55:22,047 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 01:55:22,048 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-10 01:55:22,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 2415 states, 2386 states have (on average 1.8512154233025986) internal successors, (4417), 2389 states have internal predecessors, (4417), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-01-10 01:55:22,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:22,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:22,124 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] [2022-01-10 01:55:22,125 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:22,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:22,129 INFO L85 PathProgramCache]: Analyzing trace with hash -72843931, now seen corresponding path program 1 times [2022-01-10 01:55:22,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:22,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080823311] [2022-01-10 01:55:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:22,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:22,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:22,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:22,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:22,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:22,543 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 01:55:22,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:22,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080823311] [2022-01-10 01:55:22,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080823311] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:22,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:22,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 01:55:22,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242193041] [2022-01-10 01:55:22,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:22,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:55:22,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:22,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:55:22,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:55:22,590 INFO L87 Difference]: Start difference. First operand has 2415 states, 2386 states have (on average 1.8512154233025986) internal successors, (4417), 2389 states have internal predecessors, (4417), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 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 01:55:23,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:55:23,465 INFO L93 Difference]: Finished difference Result 4896 states and 9026 transitions. [2022-01-10 01:55:23,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 01:55:23,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 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 112 [2022-01-10 01:55:23,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:55:23,498 INFO L225 Difference]: With dead ends: 4896 [2022-01-10 01:55:23,498 INFO L226 Difference]: Without dead ends: 2424 [2022-01-10 01:55:23,508 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 01:55:23,511 INFO L933 BasicCegarLoop]: 4405 mSDtfsCounter, 582 mSDsluCounter, 12309 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 600 SdHoareTripleChecker+Valid, 16714 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:55:23,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [600 Valid, 16714 Invalid, 454 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:55:23,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2424 states. [2022-01-10 01:55:23,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2424 to 2348. [2022-01-10 01:55:23,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 2320 states have (on average 1.8387931034482758) internal successors, (4266), 2322 states have internal predecessors, (4266), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-01-10 01:55:23,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 4306 transitions. [2022-01-10 01:55:23,648 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 4306 transitions. Word has length 112 [2022-01-10 01:55:23,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:55:23,648 INFO L470 AbstractCegarLoop]: Abstraction has 2348 states and 4306 transitions. [2022-01-10 01:55:23,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 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 01:55:23,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 4306 transitions. [2022-01-10 01:55:23,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:23,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:23,653 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] [2022-01-10 01:55:23,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:55:23,653 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:23,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:23,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1103884829, now seen corresponding path program 1 times [2022-01-10 01:55:23,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:23,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482779499] [2022-01-10 01:55:23,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:23,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:23,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:23,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:23,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:23,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:23,932 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 01:55:23,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:23,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482779499] [2022-01-10 01:55:23,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482779499] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:23,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:23,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:55:23,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234859454] [2022-01-10 01:55:23,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:23,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:55:23,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:23,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:55:23,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:55:23,936 INFO L87 Difference]: Start difference. First operand 2348 states and 4306 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:25,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:55:25,812 INFO L93 Difference]: Finished difference Result 2945 states and 5262 transitions. [2022-01-10 01:55:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:55:25,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 112 [2022-01-10 01:55:25,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:55:25,827 INFO L225 Difference]: With dead ends: 2945 [2022-01-10 01:55:25,827 INFO L226 Difference]: Without dead ends: 2732 [2022-01-10 01:55:25,831 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 01:55:25,832 INFO L933 BasicCegarLoop]: 4540 mSDtfsCounter, 4776 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4789 SdHoareTripleChecker+Valid, 21478 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:55:25,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4789 Valid, 21478 Invalid, 1933 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-10 01:55:25,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2022-01-10 01:55:25,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2571. [2022-01-10 01:55:25,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2518 states have (on average 1.8177124702144558) internal successors, (4577), 2522 states have internal predecessors, (4577), 37 states have call successors, (37), 12 states have call predecessors, (37), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2022-01-10 01:55:25,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 4658 transitions. [2022-01-10 01:55:25,912 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 4658 transitions. Word has length 112 [2022-01-10 01:55:25,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:55:25,912 INFO L470 AbstractCegarLoop]: Abstraction has 2571 states and 4658 transitions. [2022-01-10 01:55:25,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 4658 transitions. [2022-01-10 01:55:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:25,915 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:25,915 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] [2022-01-10 01:55:25,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:55:25,915 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:25,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:25,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1572107553, now seen corresponding path program 1 times [2022-01-10 01:55:25,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:25,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914701606] [2022-01-10 01:55:25,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:25,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:25,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:26,065 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 01:55:26,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:26,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914701606] [2022-01-10 01:55:26,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914701606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:26,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:26,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:55:26,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970296218] [2022-01-10 01:55:26,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:26,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:55:26,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:26,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:55:26,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:55:26,068 INFO L87 Difference]: Start difference. First operand 2571 states and 4658 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:27,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:55:27,864 INFO L93 Difference]: Finished difference Result 3704 states and 6454 transitions. [2022-01-10 01:55:27,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:55:27,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 112 [2022-01-10 01:55:27,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:55:27,890 INFO L225 Difference]: With dead ends: 3704 [2022-01-10 01:55:27,891 INFO L226 Difference]: Without dead ends: 3270 [2022-01-10 01:55:27,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 01:55:27,902 INFO L933 BasicCegarLoop]: 4487 mSDtfsCounter, 4800 mSDsluCounter, 16875 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4813 SdHoareTripleChecker+Valid, 21362 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:55:27,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4813 Valid, 21362 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-01-10 01:55:27,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3270 states. [2022-01-10 01:55:28,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3270 to 2981. [2022-01-10 01:55:28,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2884 states have (on average 1.782246879334258) internal successors, (5140), 2890 states have internal predecessors, (5140), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2022-01-10 01:55:28,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 5291 transitions. [2022-01-10 01:55:28,041 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 5291 transitions. Word has length 112 [2022-01-10 01:55:28,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:55:28,041 INFO L470 AbstractCegarLoop]: Abstraction has 2981 states and 5291 transitions. [2022-01-10 01:55:28,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:28,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 5291 transitions. [2022-01-10 01:55:28,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:28,044 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:28,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:55:28,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 01:55:28,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:28,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:28,045 INFO L85 PathProgramCache]: Analyzing trace with hash 688598563, now seen corresponding path program 1 times [2022-01-10 01:55:28,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:28,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431707738] [2022-01-10 01:55:28,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:28,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:28,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:28,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:28,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:28,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:28,176 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 01:55:28,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:28,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431707738] [2022-01-10 01:55:28,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431707738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:28,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:28,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:55:28,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956682910] [2022-01-10 01:55:28,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:28,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:55:28,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:28,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:55:28,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:55:28,179 INFO L87 Difference]: Start difference. First operand 2981 states and 5291 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:30,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:55:30,062 INFO L93 Difference]: Finished difference Result 5188 states and 8779 transitions. [2022-01-10 01:55:30,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:55:30,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 112 [2022-01-10 01:55:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:55:30,084 INFO L225 Difference]: With dead ends: 5188 [2022-01-10 01:55:30,084 INFO L226 Difference]: Without dead ends: 4344 [2022-01-10 01:55:30,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 01:55:30,090 INFO L933 BasicCegarLoop]: 4531 mSDtfsCounter, 4775 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4788 SdHoareTripleChecker+Valid, 21469 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:55:30,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4788 Valid, 21469 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-10 01:55:30,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2022-01-10 01:55:30,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 3803. [2022-01-10 01:55:30,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3803 states, 3618 states have (on average 1.732448866777225) internal successors, (6268), 3628 states have internal predecessors, (6268), 127 states have call successors, (127), 48 states have call predecessors, (127), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2022-01-10 01:55:30,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 6565 transitions. [2022-01-10 01:55:30,260 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 6565 transitions. Word has length 112 [2022-01-10 01:55:30,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:55:30,261 INFO L470 AbstractCegarLoop]: Abstraction has 3803 states and 6565 transitions. [2022-01-10 01:55:30,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 6565 transitions. [2022-01-10 01:55:30,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:30,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:30,271 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] [2022-01-10 01:55:30,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 01:55:30,273 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:30,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:30,273 INFO L85 PathProgramCache]: Analyzing trace with hash 660098273, now seen corresponding path program 1 times [2022-01-10 01:55:30,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:30,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275004719] [2022-01-10 01:55:30,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:30,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:30,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:30,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:30,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:30,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:30,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:30,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:30,384 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 01:55:30,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:30,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275004719] [2022-01-10 01:55:30,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275004719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:30,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:30,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:55:30,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010288175] [2022-01-10 01:55:30,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:30,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:55:30,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:30,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:55:30,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:55:30,386 INFO L87 Difference]: Start difference. First operand 3803 states and 6565 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:32,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:55:32,024 INFO L93 Difference]: Finished difference Result 8154 states and 13443 transitions. [2022-01-10 01:55:32,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:55:32,025 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 112 [2022-01-10 01:55:32,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:55:32,054 INFO L225 Difference]: With dead ends: 8154 [2022-01-10 01:55:32,054 INFO L226 Difference]: Without dead ends: 6488 [2022-01-10 01:55:32,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 01:55:32,061 INFO L933 BasicCegarLoop]: 4528 mSDtfsCounter, 4775 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4788 SdHoareTripleChecker+Valid, 21466 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:55:32,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4788 Valid, 21466 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1854 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 01:55:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6488 states. [2022-01-10 01:55:32,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6488 to 5453. [2022-01-10 01:55:32,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5453 states, 5092 states have (on average 1.6755695208169679) internal successors, (8532), 5110 states have internal predecessors, (8532), 247 states have call successors, (247), 96 states have call predecessors, (247), 112 states have return successors, (360), 262 states have call predecessors, (360), 247 states have call successors, (360) [2022-01-10 01:55:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5453 states to 5453 states and 9139 transitions. [2022-01-10 01:55:32,278 INFO L78 Accepts]: Start accepts. Automaton has 5453 states and 9139 transitions. Word has length 112 [2022-01-10 01:55:32,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:55:32,279 INFO L470 AbstractCegarLoop]: Abstraction has 5453 states and 9139 transitions. [2022-01-10 01:55:32,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:32,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5453 states and 9139 transitions. [2022-01-10 01:55:32,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:32,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:32,285 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] [2022-01-10 01:55:32,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 01:55:32,286 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:32,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:32,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1280483741, now seen corresponding path program 1 times [2022-01-10 01:55:32,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:32,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224095183] [2022-01-10 01:55:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:32,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:32,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:32,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:32,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:32,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:32,400 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 01:55:32,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:32,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224095183] [2022-01-10 01:55:32,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224095183] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:32,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:32,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:55:32,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196980002] [2022-01-10 01:55:32,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:32,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:55:32,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:32,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:55:32,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:55:32,402 INFO L87 Difference]: Start difference. First operand 5453 states and 9139 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:34,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:55:34,113 INFO L93 Difference]: Finished difference Result 14084 states and 22827 transitions. [2022-01-10 01:55:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:55:34,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 112 [2022-01-10 01:55:34,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:55:34,161 INFO L225 Difference]: With dead ends: 14084 [2022-01-10 01:55:34,161 INFO L226 Difference]: Without dead ends: 10768 [2022-01-10 01:55:34,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 01:55:34,230 INFO L933 BasicCegarLoop]: 4525 mSDtfsCounter, 4775 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4788 SdHoareTripleChecker+Valid, 21463 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:55:34,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4788 Valid, 21463 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1848 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 01:55:34,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10768 states. [2022-01-10 01:55:34,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10768 to 8767. [2022-01-10 01:55:34,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8767 states, 8054 states have (on average 1.6240377452197665) internal successors, (13080), 8088 states have internal predecessors, (13080), 487 states have call successors, (487), 192 states have call predecessors, (487), 224 states have return successors, (794), 518 states have call predecessors, (794), 487 states have call successors, (794) [2022-01-10 01:55:34,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8767 states to 8767 states and 14361 transitions. [2022-01-10 01:55:34,598 INFO L78 Accepts]: Start accepts. Automaton has 8767 states and 14361 transitions. Word has length 112 [2022-01-10 01:55:34,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:55:34,598 INFO L470 AbstractCegarLoop]: Abstraction has 8767 states and 14361 transitions. [2022-01-10 01:55:34,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 8767 states and 14361 transitions. [2022-01-10 01:55:34,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:34,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:34,605 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] [2022-01-10 01:55:34,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 01:55:34,605 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:34,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:34,606 INFO L85 PathProgramCache]: Analyzing trace with hash 596579489, now seen corresponding path program 1 times [2022-01-10 01:55:34,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:34,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192616219] [2022-01-10 01:55:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:34,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:34,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:34,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:34,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:34,722 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 01:55:34,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:34,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192616219] [2022-01-10 01:55:34,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192616219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:34,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:34,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:55:34,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423317662] [2022-01-10 01:55:34,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:34,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:55:34,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:34,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:55:34,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:55:34,724 INFO L87 Difference]: Start difference. First operand 8767 states and 14361 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:36,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:55:36,709 INFO L93 Difference]: Finished difference Result 25942 states and 41783 transitions. [2022-01-10 01:55:36,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-10 01:55:36,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 112 [2022-01-10 01:55:36,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:55:36,779 INFO L225 Difference]: With dead ends: 25942 [2022-01-10 01:55:36,780 INFO L226 Difference]: Without dead ends: 19312 [2022-01-10 01:55:36,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-01-10 01:55:36,807 INFO L933 BasicCegarLoop]: 4522 mSDtfsCounter, 4775 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4788 SdHoareTripleChecker+Valid, 21460 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 01:55:36,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4788 Valid, 21460 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-10 01:55:36,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19312 states. [2022-01-10 01:55:37,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19312 to 15425. [2022-01-10 01:55:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15425 states, 14008 states have (on average 1.5862364363221018) internal successors, (22220), 14074 states have internal predecessors, (22220), 967 states have call successors, (967), 384 states have call predecessors, (967), 448 states have return successors, (1824), 1030 states have call predecessors, (1824), 967 states have call successors, (1824) [2022-01-10 01:55:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15425 states to 15425 states and 25011 transitions. [2022-01-10 01:55:37,539 INFO L78 Accepts]: Start accepts. Automaton has 15425 states and 25011 transitions. Word has length 112 [2022-01-10 01:55:37,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:55:37,542 INFO L470 AbstractCegarLoop]: Abstraction has 15425 states and 25011 transitions. [2022-01-10 01:55:37,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:37,543 INFO L276 IsEmpty]: Start isEmpty. Operand 15425 states and 25011 transitions. [2022-01-10 01:55:37,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:37,553 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:37,554 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] [2022-01-10 01:55:37,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 01:55:37,554 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:37,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:37,554 INFO L85 PathProgramCache]: Analyzing trace with hash -174154077, now seen corresponding path program 1 times [2022-01-10 01:55:37,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:37,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495128382] [2022-01-10 01:55:37,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:37,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:37,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:37,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:37,651 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 01:55:37,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:37,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495128382] [2022-01-10 01:55:37,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495128382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:37,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:37,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:55:37,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016838109] [2022-01-10 01:55:37,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:37,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:55:37,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:37,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:55:37,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:55:37,653 INFO L87 Difference]: Start difference. First operand 15425 states and 25011 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:41,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:55:41,006 INFO L93 Difference]: Finished difference Result 55608 states and 89253 transitions. [2022-01-10 01:55:41,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:55:41,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 112 [2022-01-10 01:55:41,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:55:41,172 INFO L225 Difference]: With dead ends: 55608 [2022-01-10 01:55:41,172 INFO L226 Difference]: Without dead ends: 42320 [2022-01-10 01:55:41,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 01:55:41,231 INFO L933 BasicCegarLoop]: 4515 mSDtfsCounter, 5030 mSDsluCounter, 16930 mSDsCounter, 0 mSdLazyCounter, 1826 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5050 SdHoareTripleChecker+Valid, 21445 SdHoareTripleChecker+Invalid, 1906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:55:41,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5050 Valid, 21445 Invalid, 1906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1826 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 01:55:41,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42320 states. [2022-01-10 01:55:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42320 to 28611. [2022-01-10 01:55:42,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28611 states, 25850 states have (on average 1.565338491295938) internal successors, (40464), 25980 states have internal predecessors, (40464), 1863 states have call successors, (1863), 768 states have call predecessors, (1863), 896 states have return successors, (4306), 1990 states have call predecessors, (4306), 1863 states have call successors, (4306) [2022-01-10 01:55:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28611 states to 28611 states and 46633 transitions. [2022-01-10 01:55:42,682 INFO L78 Accepts]: Start accepts. Automaton has 28611 states and 46633 transitions. Word has length 112 [2022-01-10 01:55:42,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:55:42,682 INFO L470 AbstractCegarLoop]: Abstraction has 28611 states and 46633 transitions. [2022-01-10 01:55:42,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:42,682 INFO L276 IsEmpty]: Start isEmpty. Operand 28611 states and 46633 transitions. [2022-01-10 01:55:42,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:42,702 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:42,702 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] [2022-01-10 01:55:42,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 01:55:42,703 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:42,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1168847775, now seen corresponding path program 1 times [2022-01-10 01:55:42,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:42,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256046151] [2022-01-10 01:55:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:42,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:42,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:42,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:42,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:42,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:42,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:42,795 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 01:55:42,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:42,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256046151] [2022-01-10 01:55:42,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256046151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:42,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:42,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:55:42,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943951857] [2022-01-10 01:55:42,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:42,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:55:42,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:42,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:55:42,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:55:42,797 INFO L87 Difference]: Start difference. First operand 28611 states and 46633 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:48,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:55:48,114 INFO L93 Difference]: Finished difference Result 105085 states and 171193 transitions. [2022-01-10 01:55:48,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:55:48,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 112 [2022-01-10 01:55:48,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:55:48,560 INFO L225 Difference]: With dead ends: 105085 [2022-01-10 01:55:48,560 INFO L226 Difference]: Without dead ends: 78611 [2022-01-10 01:55:48,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 01:55:48,651 INFO L933 BasicCegarLoop]: 4507 mSDtfsCounter, 4964 mSDsluCounter, 16930 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 21437 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:55:48,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4984 Valid, 21437 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 01:55:48,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78611 states. [2022-01-10 01:55:51,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78611 to 55045. [2022-01-10 01:55:51,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55045 states, 49660 states have (on average 1.5559403946838501) internal successors, (77268), 49918 states have internal predecessors, (77268), 3591 states have call successors, (3591), 1536 states have call predecessors, (3591), 1792 states have return successors, (10664), 3846 states have call predecessors, (10664), 3591 states have call successors, (10664) [2022-01-10 01:55:52,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55045 states to 55045 states and 91523 transitions. [2022-01-10 01:55:52,021 INFO L78 Accepts]: Start accepts. Automaton has 55045 states and 91523 transitions. Word has length 112 [2022-01-10 01:55:52,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:55:52,021 INFO L470 AbstractCegarLoop]: Abstraction has 55045 states and 91523 transitions. [2022-01-10 01:55:52,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:55:52,022 INFO L276 IsEmpty]: Start isEmpty. Operand 55045 states and 91523 transitions. [2022-01-10 01:55:52,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 01:55:52,059 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:55:52,059 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] [2022-01-10 01:55:52,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 01:55:52,059 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:55:52,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:55:52,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1167544735, now seen corresponding path program 1 times [2022-01-10 01:55:52,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:55:52,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620011153] [2022-01-10 01:55:52,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:55:52,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:55:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:52,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-01-10 01:55:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:52,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:55:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:52,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:55:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:52,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-01-10 01:55:52,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-01-10 01:55:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:55:52,173 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 01:55:52,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:55:52,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620011153] [2022-01-10 01:55:52,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620011153] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:55:52,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:55:52,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:55:52,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900784524] [2022-01-10 01:55:52,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:55:52,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 01:55:52,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:55:52,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 01:55:52,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 01:55:52,175 INFO L87 Difference]: Start difference. First operand 55045 states and 91523 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 01:56:01,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:56:01,515 INFO L93 Difference]: Finished difference Result 203331 states and 339677 transitions. [2022-01-10 01:56:01,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:56:01,515 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 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 112 [2022-01-10 01:56:01,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:56:02,444 INFO L225 Difference]: With dead ends: 203331 [2022-01-10 01:56:02,444 INFO L226 Difference]: Without dead ends: 150423 [2022-01-10 01:56:02,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-01-10 01:56:02,682 INFO L933 BasicCegarLoop]: 4472 mSDtfsCounter, 4937 mSDsluCounter, 16870 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4957 SdHoareTripleChecker+Valid, 21342 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:56:02,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4957 Valid, 21342 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 01:56:02,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150423 states.