/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-21 00:05:52,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-21 00:05:52,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-21 00:05:52,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-21 00:05:52,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-21 00:05:52,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-21 00:05:52,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-21 00:05:52,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-21 00:05:52,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-21 00:05:52,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-21 00:05:52,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-21 00:05:52,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-21 00:05:52,804 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-21 00:05:52,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-21 00:05:52,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-21 00:05:52,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-21 00:05:52,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-21 00:05:52,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-21 00:05:52,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-21 00:05:52,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-21 00:05:52,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-21 00:05:52,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-21 00:05:52,833 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-21 00:05:52,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-21 00:05:52,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-21 00:05:52,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-21 00:05:52,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-21 00:05:52,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-21 00:05:52,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-21 00:05:52,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-21 00:05:52,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-21 00:05:52,837 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-21 00:05:52,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-21 00:05:52,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-21 00:05:52,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-21 00:05:52,838 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-21 00:05:52,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-21 00:05:52,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:05:52,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-21 00:05:52,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-21 00:05:52,839 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-21 00:05:52,839 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-21 00:05:52,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-21 00:05:52,839 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-21 00:05:52,839 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-21 00:05:53,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-21 00:05:53,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-21 00:05:53,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-21 00:05:53,105 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-21 00:05:53,106 INFO L275 PluginConnector]: CDTParser initialized [2022-03-21 00:05:53,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-03-21 00:05:53,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac85ed4b/22b39f2955274972a09e162af7332a6f/FLAGd54f40ab3 [2022-03-21 00:05:53,707 INFO L306 CDTParser]: Found 1 translation units. [2022-03-21 00:05:53,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c [2022-03-21 00:05:53,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac85ed4b/22b39f2955274972a09e162af7332a6f/FLAGd54f40ab3 [2022-03-21 00:05:53,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ac85ed4b/22b39f2955274972a09e162af7332a6f [2022-03-21 00:05:53,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-21 00:05:53,971 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-21 00:05:53,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-21 00:05:53,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-21 00:05:53,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-21 00:05:53,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:05:53" (1/1) ... [2022-03-21 00:05:53,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42056b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:53, skipping insertion in model container [2022-03-21 00:05:53,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:05:53" (1/1) ... [2022-03-21 00:05:53,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-21 00:05:54,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-21 00:05:54,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2022-03-21 00:05:54,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:05:54,447 INFO L203 MainTranslator]: Completed pre-run [2022-03-21 00:05:54,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.04.i.cil-2.c[65405,65418] [2022-03-21 00:05:54,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:05:54,570 INFO L208 MainTranslator]: Completed translation [2022-03-21 00:05:54,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54 WrapperNode [2022-03-21 00:05:54,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-21 00:05:54,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-21 00:05:54,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-21 00:05:54,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-21 00:05:54,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54" (1/1) ... [2022-03-21 00:05:54,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54" (1/1) ... [2022-03-21 00:05:54,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54" (1/1) ... [2022-03-21 00:05:54,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54" (1/1) ... [2022-03-21 00:05:54,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54" (1/1) ... [2022-03-21 00:05:54,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54" (1/1) ... [2022-03-21 00:05:54,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54" (1/1) ... [2022-03-21 00:05:54,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-21 00:05:54,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-21 00:05:54,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-21 00:05:54,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-21 00:05:54,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54" (1/1) ... [2022-03-21 00:05:54,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:05:54,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-21 00:05:54,725 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) [2022-03-21 00:05:54,747 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 [2022-03-21 00:05:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-21 00:05:54,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-21 00:05:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-21 00:05:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-21 00:05:54,774 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-21 00:05:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-21 00:05:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-21 00:05:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-21 00:05:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-21 00:05:54,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-21 00:05:54,775 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-21 00:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-21 00:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-21 00:05:54,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-21 00:05:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-21 00:05:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-21 00:05:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-21 00:05:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-21 00:05:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-21 00:05:54,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-21 00:05:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-21 00:05:54,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-21 00:05:54,946 INFO L234 CfgBuilder]: Building ICFG [2022-03-21 00:05:54,947 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-21 00:05:56,546 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-21 00:05:56,936 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-21 00:05:56,937 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-21 00:05:56,953 INFO L275 CfgBuilder]: Performing block encoding [2022-03-21 00:05:56,965 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-21 00:05:56,965 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-21 00:05:56,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:05:56 BoogieIcfgContainer [2022-03-21 00:05:56,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-21 00:05:56,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-21 00:05:56,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-21 00:05:56,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-21 00:05:56,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.03 12:05:53" (1/3) ... [2022-03-21 00:05:56,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f4ba5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:05:56, skipping insertion in model container [2022-03-21 00:05:56,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:05:54" (2/3) ... [2022-03-21 00:05:56,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61f4ba5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:05:56, skipping insertion in model container [2022-03-21 00:05:56,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:05:56" (3/3) ... [2022-03-21 00:05:56,975 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.04.i.cil-2.c [2022-03-21 00:05:56,980 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-21 00:05:56,980 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-21 00:05:57,027 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-21 00:05:57,031 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2022-03-21 00:05:57,032 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-21 00:05:57,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-21 00:05:57,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-21 00:05:57,059 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:05:57,059 INFO L499 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] [2022-03-21 00:05:57,060 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:05:57,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:05:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash -22644822, now seen corresponding path program 1 times [2022-03-21 00:05:57,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:57,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1282869141] [2022-03-21 00:05:57,081 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:05:57,082 INFO L85 PathProgramCache]: Analyzing trace with hash -22644822, now seen corresponding path program 2 times [2022-03-21 00:05:57,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:05:57,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730857409] [2022-03-21 00:05:57,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:05:57,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:05:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:05:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:05:57,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:05:57,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:05:57,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730857409] [2022-03-21 00:05:57,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730857409] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:57,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:57,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:05:57,747 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:05:57,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1282869141] [2022-03-21 00:05:57,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1282869141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:05:57,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:05:57,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:05:57,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724948215] [2022-03-21 00:05:57,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:05:57,753 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:05:57,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:05:57,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:05:57,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:05:57,777 INFO L87 Difference]: Start difference. First operand has 138 states, 130 states have (on average 1.6923076923076923) internal successors, (220), 131 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:05:59,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:06:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:00,339 INFO L93 Difference]: Finished difference Result 267 states and 442 transitions. [2022-03-21 00:06:00,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:06:00,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-03-21 00:06:00,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:00,350 INFO L225 Difference]: With dead ends: 267 [2022-03-21 00:06:00,350 INFO L226 Difference]: Without dead ends: 122 [2022-03-21 00:06:00,354 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:06:00,364 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:00,367 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 555 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 320 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:06:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-03-21 00:06:00,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2022-03-21 00:06:00,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 116 states have (on average 1.5) internal successors, (174), 116 states have internal predecessors, (174), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:00,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 178 transitions. [2022-03-21 00:06:00,423 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 178 transitions. Word has length 30 [2022-03-21 00:06:00,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:00,423 INFO L478 AbstractCegarLoop]: Abstraction has 121 states and 178 transitions. [2022-03-21 00:06:00,424 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:00,424 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 178 transitions. [2022-03-21 00:06:00,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-03-21 00:06:00,427 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:00,429 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:00,430 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-21 00:06:00,430 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:00,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash 868047042, now seen corresponding path program 1 times [2022-03-21 00:06:00,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:00,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1379868367] [2022-03-21 00:06:00,432 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:00,432 INFO L85 PathProgramCache]: Analyzing trace with hash 868047042, now seen corresponding path program 2 times [2022-03-21 00:06:00,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:00,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54522245] [2022-03-21 00:06:00,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:00,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:00,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:00,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-21 00:06:00,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:00,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54522245] [2022-03-21 00:06:00,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54522245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:00,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:00,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:00,708 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:00,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1379868367] [2022-03-21 00:06:00,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1379868367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:00,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:00,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:00,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978525991] [2022-03-21 00:06:00,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:00,710 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:06:00,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:00,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:06:00,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:00,711 INFO L87 Difference]: Start difference. First operand 121 states and 178 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:02,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:06:03,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:03,067 INFO L93 Difference]: Finished difference Result 327 states and 490 transitions. [2022-03-21 00:06:03,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:06:03,068 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2022-03-21 00:06:03,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:03,070 INFO L225 Difference]: With dead ends: 327 [2022-03-21 00:06:03,070 INFO L226 Difference]: Without dead ends: 222 [2022-03-21 00:06:03,071 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:03,071 INFO L913 BasicCegarLoop]: 166 mSDtfsCounter, 124 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:03,072 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 319 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:06:03,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-03-21 00:06:03,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2022-03-21 00:06:03,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 217 states have internal predecessors, (322), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:03,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 326 transitions. [2022-03-21 00:06:03,091 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 326 transitions. Word has length 44 [2022-03-21 00:06:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:03,091 INFO L478 AbstractCegarLoop]: Abstraction has 222 states and 326 transitions. [2022-03-21 00:06:03,092 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:03,092 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 326 transitions. [2022-03-21 00:06:03,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-03-21 00:06:03,093 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:03,094 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:03,094 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-21 00:06:03,094 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:03,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:03,095 INFO L85 PathProgramCache]: Analyzing trace with hash -446115060, now seen corresponding path program 1 times [2022-03-21 00:06:03,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:03,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1686997897] [2022-03-21 00:06:03,095 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:03,096 INFO L85 PathProgramCache]: Analyzing trace with hash -446115060, now seen corresponding path program 2 times [2022-03-21 00:06:03,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:03,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116757974] [2022-03-21 00:06:03,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:03,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:03,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-21 00:06:03,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:03,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116757974] [2022-03-21 00:06:03,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116757974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:03,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:03,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:03,303 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:03,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1686997897] [2022-03-21 00:06:03,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1686997897] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:03,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:03,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:03,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311096604] [2022-03-21 00:06:03,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:03,304 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:06:03,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:03,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:06:03,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:06:03,304 INFO L87 Difference]: Start difference. First operand 222 states and 326 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:05,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:06:05,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:05,940 INFO L93 Difference]: Finished difference Result 611 states and 908 transitions. [2022-03-21 00:06:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:06:05,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2022-03-21 00:06:05,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:05,946 INFO L225 Difference]: With dead ends: 611 [2022-03-21 00:06:05,947 INFO L226 Difference]: Without dead ends: 405 [2022-03-21 00:06:05,948 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:06:05,949 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 106 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:05,949 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 279 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-21 00:06:05,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2022-03-21 00:06:05,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 270. [2022-03-21 00:06:05,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 265 states have (on average 1.5320754716981133) internal successors, (406), 265 states have internal predecessors, (406), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 410 transitions. [2022-03-21 00:06:05,975 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 410 transitions. Word has length 59 [2022-03-21 00:06:05,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:05,975 INFO L478 AbstractCegarLoop]: Abstraction has 270 states and 410 transitions. [2022-03-21 00:06:05,976 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 410 transitions. [2022-03-21 00:06:05,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-03-21 00:06:05,978 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:05,978 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:05,978 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-21 00:06:05,978 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:05,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:05,979 INFO L85 PathProgramCache]: Analyzing trace with hash -949350737, now seen corresponding path program 1 times [2022-03-21 00:06:05,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:05,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1942468551] [2022-03-21 00:06:05,979 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:05,980 INFO L85 PathProgramCache]: Analyzing trace with hash -949350737, now seen corresponding path program 2 times [2022-03-21 00:06:05,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:05,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534784326] [2022-03-21 00:06:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:05,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:06,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-21 00:06:06,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:06,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534784326] [2022-03-21 00:06:06,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534784326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:06,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:06,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:06,178 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:06,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1942468551] [2022-03-21 00:06:06,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1942468551] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:06,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:06,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:06,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572980942] [2022-03-21 00:06:06,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:06,179 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:06:06,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:06,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:06:06,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:06:06,180 INFO L87 Difference]: Start difference. First operand 270 states and 410 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:08,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:06:08,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:08,741 INFO L93 Difference]: Finished difference Result 707 states and 1076 transitions. [2022-03-21 00:06:08,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:06:08,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2022-03-21 00:06:08,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:08,744 INFO L225 Difference]: With dead ends: 707 [2022-03-21 00:06:08,744 INFO L226 Difference]: Without dead ends: 453 [2022-03-21 00:06:08,745 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:06:08,746 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 106 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:08,747 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:06:08,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-03-21 00:06:08,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 320. [2022-03-21 00:06:08,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.5682539682539682) internal successors, (494), 315 states have internal predecessors, (494), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:08,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 498 transitions. [2022-03-21 00:06:08,774 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 498 transitions. Word has length 60 [2022-03-21 00:06:08,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:08,774 INFO L478 AbstractCegarLoop]: Abstraction has 320 states and 498 transitions. [2022-03-21 00:06:08,775 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:08,775 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 498 transitions. [2022-03-21 00:06:08,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-21 00:06:08,784 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:08,784 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:08,784 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-21 00:06:08,785 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:08,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:08,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1308079053, now seen corresponding path program 1 times [2022-03-21 00:06:08,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:08,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [894054870] [2022-03-21 00:06:08,786 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:08,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1308079053, now seen corresponding path program 2 times [2022-03-21 00:06:08,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:08,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642250828] [2022-03-21 00:06:08,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:08,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:08,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-21 00:06:08,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:08,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642250828] [2022-03-21 00:06:08,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642250828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:08,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:08,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:08,988 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:08,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [894054870] [2022-03-21 00:06:08,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [894054870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:08,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:08,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:08,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798848238] [2022-03-21 00:06:08,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:08,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:06:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:08,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:06:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:08,994 INFO L87 Difference]: Start difference. First operand 320 states and 498 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:11,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:06:11,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:11,488 INFO L93 Difference]: Finished difference Result 623 states and 981 transitions. [2022-03-21 00:06:11,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:06:11,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2022-03-21 00:06:11,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:11,490 INFO L225 Difference]: With dead ends: 623 [2022-03-21 00:06:11,490 INFO L226 Difference]: Without dead ends: 469 [2022-03-21 00:06:11,491 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:11,492 INFO L913 BasicCegarLoop]: 308 mSDtfsCounter, 126 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:11,492 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 470 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 332 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:06:11,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2022-03-21 00:06:11,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 469. [2022-03-21 00:06:11,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 464 states have (on average 1.5668103448275863) internal successors, (727), 464 states have internal predecessors, (727), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:11,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 731 transitions. [2022-03-21 00:06:11,515 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 731 transitions. Word has length 80 [2022-03-21 00:06:11,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:11,515 INFO L478 AbstractCegarLoop]: Abstraction has 469 states and 731 transitions. [2022-03-21 00:06:11,516 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:11,516 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 731 transitions. [2022-03-21 00:06:11,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-21 00:06:11,517 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:11,517 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:11,517 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-21 00:06:11,518 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:11,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:11,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1829686905, now seen corresponding path program 1 times [2022-03-21 00:06:11,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:11,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1516564560] [2022-03-21 00:06:11,519 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:11,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1829686905, now seen corresponding path program 2 times [2022-03-21 00:06:11,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:11,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936464974] [2022-03-21 00:06:11,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:11,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:11,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:11,745 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-03-21 00:06:11,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:11,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936464974] [2022-03-21 00:06:11,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936464974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:11,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:11,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:11,746 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:11,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1516564560] [2022-03-21 00:06:11,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1516564560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:11,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:11,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:11,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143845990] [2022-03-21 00:06:11,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:11,746 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:06:11,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:11,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:06:11,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:11,747 INFO L87 Difference]: Start difference. First operand 469 states and 731 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:13,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:06:14,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:14,250 INFO L93 Difference]: Finished difference Result 922 states and 1448 transitions. [2022-03-21 00:06:14,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:06:14,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-03-21 00:06:14,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:14,253 INFO L225 Difference]: With dead ends: 922 [2022-03-21 00:06:14,253 INFO L226 Difference]: Without dead ends: 619 [2022-03-21 00:06:14,254 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:14,254 INFO L913 BasicCegarLoop]: 315 mSDtfsCounter, 127 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:14,255 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 477 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:06:14,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-03-21 00:06:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2022-03-21 00:06:14,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 614 states have (on average 1.5667752442996743) internal successors, (962), 614 states have internal predecessors, (962), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 966 transitions. [2022-03-21 00:06:14,281 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 966 transitions. Word has length 98 [2022-03-21 00:06:14,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:14,281 INFO L478 AbstractCegarLoop]: Abstraction has 619 states and 966 transitions. [2022-03-21 00:06:14,281 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:14,281 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 966 transitions. [2022-03-21 00:06:14,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-21 00:06:14,283 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:14,283 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:14,283 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-21 00:06:14,284 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:14,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1108655063, now seen corresponding path program 1 times [2022-03-21 00:06:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:14,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1500577452] [2022-03-21 00:06:14,285 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:14,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1108655063, now seen corresponding path program 2 times [2022-03-21 00:06:14,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:14,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980086565] [2022-03-21 00:06:14,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:14,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:14,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-21 00:06:14,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:14,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980086565] [2022-03-21 00:06:14,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980086565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:14,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:14,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:14,496 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:14,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1500577452] [2022-03-21 00:06:14,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1500577452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:14,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:14,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:14,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23140236] [2022-03-21 00:06:14,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:14,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:06:14,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:14,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:06:14,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:14,499 INFO L87 Difference]: Start difference. First operand 619 states and 966 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:16,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:06:17,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:17,011 INFO L93 Difference]: Finished difference Result 1223 states and 1920 transitions. [2022-03-21 00:06:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:06:17,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-21 00:06:17,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:17,015 INFO L225 Difference]: With dead ends: 1223 [2022-03-21 00:06:17,016 INFO L226 Difference]: Without dead ends: 770 [2022-03-21 00:06:17,017 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:17,017 INFO L913 BasicCegarLoop]: 316 mSDtfsCounter, 127 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:17,018 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 478 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 341 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:06:17,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2022-03-21 00:06:17,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2022-03-21 00:06:17,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 765 states have (on average 1.5660130718954248) internal successors, (1198), 765 states have internal predecessors, (1198), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:17,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1202 transitions. [2022-03-21 00:06:17,048 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1202 transitions. Word has length 118 [2022-03-21 00:06:17,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:17,048 INFO L478 AbstractCegarLoop]: Abstraction has 770 states and 1202 transitions. [2022-03-21 00:06:17,049 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:17,049 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1202 transitions. [2022-03-21 00:06:17,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-21 00:06:17,050 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:17,051 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:17,051 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-21 00:06:17,051 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1249203673, now seen corresponding path program 1 times [2022-03-21 00:06:17,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:17,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [125577002] [2022-03-21 00:06:17,052 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:17,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1249203673, now seen corresponding path program 2 times [2022-03-21 00:06:17,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:17,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96889397] [2022-03-21 00:06:17,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:17,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-21 00:06:17,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:17,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96889397] [2022-03-21 00:06:17,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96889397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:17,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:17,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:17,216 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:17,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [125577002] [2022-03-21 00:06:17,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [125577002] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:17,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:17,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:06:17,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023108969] [2022-03-21 00:06:17,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:17,217 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:06:17,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:17,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:06:17,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:17,218 INFO L87 Difference]: Start difference. First operand 770 states and 1202 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:19,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:06:19,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:19,695 INFO L93 Difference]: Finished difference Result 1500 states and 2348 transitions. [2022-03-21 00:06:19,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:06:19,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-21 00:06:19,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:19,700 INFO L225 Difference]: With dead ends: 1500 [2022-03-21 00:06:19,700 INFO L226 Difference]: Without dead ends: 896 [2022-03-21 00:06:19,701 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:06:19,702 INFO L913 BasicCegarLoop]: 314 mSDtfsCounter, 128 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:19,702 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 476 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:06:19,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2022-03-21 00:06:19,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2022-03-21 00:06:19,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 891 states have (on average 1.5600448933782267) internal successors, (1390), 891 states have internal predecessors, (1390), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:19,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1394 transitions. [2022-03-21 00:06:19,771 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1394 transitions. Word has length 118 [2022-03-21 00:06:19,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:19,771 INFO L478 AbstractCegarLoop]: Abstraction has 896 states and 1394 transitions. [2022-03-21 00:06:19,771 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:19,771 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1394 transitions. [2022-03-21 00:06:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-21 00:06:19,773 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:19,773 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:19,774 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-21 00:06:19,774 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:19,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:19,774 INFO L85 PathProgramCache]: Analyzing trace with hash -154258084, now seen corresponding path program 1 times [2022-03-21 00:06:19,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:19,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1634687942] [2022-03-21 00:06:32,494 WARN L232 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:06:39,284 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:06:39,284 INFO L85 PathProgramCache]: Analyzing trace with hash -154258084, now seen corresponding path program 2 times [2022-03-21 00:06:39,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:06:39,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466857652] [2022-03-21 00:06:39,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:06:39,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:06:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:39,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:06:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:06:39,481 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-03-21 00:06:39,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:06:39,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466857652] [2022-03-21 00:06:39,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466857652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:39,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:39,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:39,482 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:06:39,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1634687942] [2022-03-21 00:06:39,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1634687942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:06:39,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:06:39,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:06:39,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987453823] [2022-03-21 00:06:39,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:06:39,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:06:39,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:39,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:06:39,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:06:39,484 INFO L87 Difference]: Start difference. First operand 896 states and 1394 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:41,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:06:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:06:41,990 INFO L93 Difference]: Finished difference Result 2294 states and 3524 transitions. [2022-03-21 00:06:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:06:41,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 160 [2022-03-21 00:06:41,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:06:41,997 INFO L225 Difference]: With dead ends: 2294 [2022-03-21 00:06:41,997 INFO L226 Difference]: Without dead ends: 1414 [2022-03-21 00:06:41,999 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:06:42,000 INFO L913 BasicCegarLoop]: 98 mSDtfsCounter, 111 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:06:42,000 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:06:42,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2022-03-21 00:06:42,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1001. [2022-03-21 00:06:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.5652610441767068) internal successors, (1559), 996 states have internal predecessors, (1559), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:42,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1563 transitions. [2022-03-21 00:06:42,087 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1563 transitions. Word has length 160 [2022-03-21 00:06:42,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:06:42,087 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1563 transitions. [2022-03-21 00:06:42,087 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:06:42,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1563 transitions. [2022-03-21 00:06:42,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-03-21 00:06:42,090 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:06:42,090 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:06:42,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-21 00:06:42,091 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:06:42,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:06:42,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1057182855, now seen corresponding path program 1 times [2022-03-21 00:06:42,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:06:42,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [326110625] [2022-03-21 00:06:52,531 WARN L232 SmtUtils]: Spent 6.74s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:07:00,018 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:00,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1057182855, now seen corresponding path program 2 times [2022-03-21 00:07:00,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:00,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272654606] [2022-03-21 00:07:00,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:00,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:00,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-03-21 00:07:00,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:00,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272654606] [2022-03-21 00:07:00,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272654606] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:00,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:00,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:00,253 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:00,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [326110625] [2022-03-21 00:07:00,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [326110625] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:00,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:00,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:00,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75769997] [2022-03-21 00:07:00,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:00,254 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:00,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:00,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:00,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:00,254 INFO L87 Difference]: Start difference. First operand 1001 states and 1563 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:02,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:02,799 INFO L93 Difference]: Finished difference Result 2368 states and 3635 transitions. [2022-03-21 00:07:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:02,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 161 [2022-03-21 00:07:02,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:02,805 INFO L225 Difference]: With dead ends: 2368 [2022-03-21 00:07:02,806 INFO L226 Difference]: Without dead ends: 1383 [2022-03-21 00:07:02,808 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:02,809 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 109 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:02,810 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:07:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2022-03-21 00:07:02,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1001. [2022-03-21 00:07:02,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 996 states have (on average 1.5542168674698795) internal successors, (1548), 996 states have internal predecessors, (1548), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1552 transitions. [2022-03-21 00:07:02,862 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1552 transitions. Word has length 161 [2022-03-21 00:07:02,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:02,862 INFO L478 AbstractCegarLoop]: Abstraction has 1001 states and 1552 transitions. [2022-03-21 00:07:02,862 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1552 transitions. [2022-03-21 00:07:02,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-03-21 00:07:02,865 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:02,865 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:02,866 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-21 00:07:02,866 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:02,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:02,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1464555500, now seen corresponding path program 1 times [2022-03-21 00:07:02,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:02,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [821711464] [2022-03-21 00:07:18,043 WARN L232 SmtUtils]: Spent 10.85s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:07:27,183 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:27,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1464555500, now seen corresponding path program 2 times [2022-03-21 00:07:27,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:27,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77197099] [2022-03-21 00:07:27,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:27,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:27,385 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 281 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-03-21 00:07:27,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:27,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77197099] [2022-03-21 00:07:27,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77197099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:27,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:27,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:27,386 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:27,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [821711464] [2022-03-21 00:07:27,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [821711464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:27,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:27,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:27,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271060091] [2022-03-21 00:07:27,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:27,387 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:27,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:27,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:27,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:27,388 INFO L87 Difference]: Start difference. First operand 1001 states and 1552 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:29,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:29,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:29,929 INFO L93 Difference]: Finished difference Result 2493 states and 3818 transitions. [2022-03-21 00:07:29,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:29,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-03-21 00:07:29,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:29,940 INFO L225 Difference]: With dead ends: 2493 [2022-03-21 00:07:29,940 INFO L226 Difference]: Without dead ends: 1508 [2022-03-21 00:07:29,943 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:29,943 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 109 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:29,943 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:07:29,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2022-03-21 00:07:30,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1091. [2022-03-21 00:07:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1086 states have (on average 1.5534069981583793) internal successors, (1687), 1086 states have internal predecessors, (1687), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:30,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1691 transitions. [2022-03-21 00:07:30,009 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1691 transitions. Word has length 178 [2022-03-21 00:07:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:30,010 INFO L478 AbstractCegarLoop]: Abstraction has 1091 states and 1691 transitions. [2022-03-21 00:07:30,010 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1691 transitions. [2022-03-21 00:07:30,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-03-21 00:07:30,013 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:30,013 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:30,014 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-21 00:07:30,014 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:30,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:30,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1065449955, now seen corresponding path program 1 times [2022-03-21 00:07:30,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:30,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [131199530] [2022-03-21 00:07:45,459 WARN L232 SmtUtils]: Spent 11.09s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:07:53,434 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:07:53,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1065449955, now seen corresponding path program 2 times [2022-03-21 00:07:53,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:07:53,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274139082] [2022-03-21 00:07:53,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:07:53,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:07:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:53,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:07:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:07:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-03-21 00:07:53,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:07:53,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274139082] [2022-03-21 00:07:53,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274139082] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:53,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:53,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:53,622 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:07:53,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [131199530] [2022-03-21 00:07:53,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [131199530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:07:53,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:07:53,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:07:53,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458789033] [2022-03-21 00:07:53,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:07:53,623 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:07:53,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:07:53,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:07:53,624 INFO L87 Difference]: Start difference. First operand 1091 states and 1691 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:55,635 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:07:56,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:07:56,169 INFO L93 Difference]: Finished difference Result 2452 states and 3760 transitions. [2022-03-21 00:07:56,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:07:56,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2022-03-21 00:07:56,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:07:56,174 INFO L225 Difference]: With dead ends: 2452 [2022-03-21 00:07:56,175 INFO L226 Difference]: Without dead ends: 1377 [2022-03-21 00:07:56,177 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:07:56,178 INFO L913 BasicCegarLoop]: 226 mSDtfsCounter, 86 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:07:56,178 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 541 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 511 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:07:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2022-03-21 00:07:56,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1091. [2022-03-21 00:07:56,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1086 states have (on average 1.5488029465930018) internal successors, (1682), 1086 states have internal predecessors, (1682), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1686 transitions. [2022-03-21 00:07:56,244 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1686 transitions. Word has length 179 [2022-03-21 00:07:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:07:56,245 INFO L478 AbstractCegarLoop]: Abstraction has 1091 states and 1686 transitions. [2022-03-21 00:07:56,245 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:07:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1686 transitions. [2022-03-21 00:07:56,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-03-21 00:07:56,248 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:07:56,248 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:07:56,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-21 00:07:56,248 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:07:56,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:07:56,249 INFO L85 PathProgramCache]: Analyzing trace with hash 624136773, now seen corresponding path program 3 times [2022-03-21 00:07:56,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:07:56,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [185567951] [2022-03-21 00:08:08,357 WARN L232 SmtUtils]: Spent 11.46s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:08:17,659 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:17,669 INFO L85 PathProgramCache]: Analyzing trace with hash 624136773, now seen corresponding path program 4 times [2022-03-21 00:08:17,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:17,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379455980] [2022-03-21 00:08:17,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:17,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-21 00:08:17,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:17,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379455980] [2022-03-21 00:08:17,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379455980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:17,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:17,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:17,883 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:17,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [185567951] [2022-03-21 00:08:17,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [185567951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:17,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:17,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:17,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794363808] [2022-03-21 00:08:17,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:17,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:17,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:17,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:17,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:17,884 INFO L87 Difference]: Start difference. First operand 1091 states and 1686 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:19,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:20,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:20,353 INFO L93 Difference]: Finished difference Result 2542 states and 3875 transitions. [2022-03-21 00:08:20,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:20,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2022-03-21 00:08:20,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:20,359 INFO L225 Difference]: With dead ends: 2542 [2022-03-21 00:08:20,359 INFO L226 Difference]: Without dead ends: 1467 [2022-03-21 00:08:20,361 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:20,362 INFO L913 BasicCegarLoop]: 104 mSDtfsCounter, 110 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:20,362 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 296 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:08:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2022-03-21 00:08:20,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1091. [2022-03-21 00:08:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1086 states have (on average 1.5294659300184161) internal successors, (1661), 1086 states have internal predecessors, (1661), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:20,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1665 transitions. [2022-03-21 00:08:20,438 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1665 transitions. Word has length 193 [2022-03-21 00:08:20,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:20,439 INFO L478 AbstractCegarLoop]: Abstraction has 1091 states and 1665 transitions. [2022-03-21 00:08:20,439 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:20,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1665 transitions. [2022-03-21 00:08:20,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-03-21 00:08:20,442 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:20,442 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:20,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-21 00:08:20,442 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:20,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:20,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1408894034, now seen corresponding path program 1 times [2022-03-21 00:08:20,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:20,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [34279061] [2022-03-21 00:08:39,099 WARN L232 SmtUtils]: Spent 12.71s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:08:46,509 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:08:46,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1408894034, now seen corresponding path program 2 times [2022-03-21 00:08:46,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:08:46,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223524755] [2022-03-21 00:08:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:08:46,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:08:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:08:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:08:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-03-21 00:08:46,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:08:46,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223524755] [2022-03-21 00:08:46,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223524755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:46,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:46,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:46,714 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:08:46,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [34279061] [2022-03-21 00:08:46,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [34279061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:08:46,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:08:46,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:08:46,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301330343] [2022-03-21 00:08:46,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:08:46,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:08:46,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:08:46,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:08:46,715 INFO L87 Difference]: Start difference. First operand 1091 states and 1665 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:48,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:08:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:08:49,260 INFO L93 Difference]: Finished difference Result 2278 states and 3446 transitions. [2022-03-21 00:08:49,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:08:49,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2022-03-21 00:08:49,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:08:49,265 INFO L225 Difference]: With dead ends: 2278 [2022-03-21 00:08:49,265 INFO L226 Difference]: Without dead ends: 1372 [2022-03-21 00:08:49,268 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:08:49,268 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 87 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:08:49,269 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 537 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 505 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:08:49,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2022-03-21 00:08:49,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1091. [2022-03-21 00:08:49,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1086 states have (on average 1.5248618784530388) internal successors, (1656), 1086 states have internal predecessors, (1656), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:49,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1660 transitions. [2022-03-21 00:08:49,344 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1660 transitions. Word has length 193 [2022-03-21 00:08:49,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:08:49,344 INFO L478 AbstractCegarLoop]: Abstraction has 1091 states and 1660 transitions. [2022-03-21 00:08:49,344 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:08:49,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1660 transitions. [2022-03-21 00:08:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-03-21 00:08:49,347 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:08:49,348 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:08:49,348 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-21 00:08:49,348 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:08:49,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:08:49,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1223374947, now seen corresponding path program 1 times [2022-03-21 00:08:49,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:08:49,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [456459837] [2022-03-21 00:09:03,970 WARN L232 SmtUtils]: Spent 9.00s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:09:11,066 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1223374947, now seen corresponding path program 2 times [2022-03-21 00:09:11,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:11,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839206588] [2022-03-21 00:09:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:11,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:11,275 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-21 00:09:11,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:11,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839206588] [2022-03-21 00:09:11,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839206588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:11,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:11,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:11,276 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:11,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [456459837] [2022-03-21 00:09:11,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [456459837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:11,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:11,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:11,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813625138] [2022-03-21 00:09:11,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:11,277 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:11,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:11,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:11,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:11,278 INFO L87 Difference]: Start difference. First operand 1091 states and 1660 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:13,289 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:13,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:13,796 INFO L93 Difference]: Finished difference Result 2447 states and 3693 transitions. [2022-03-21 00:09:13,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:13,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2022-03-21 00:09:13,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:13,801 INFO L225 Difference]: With dead ends: 2447 [2022-03-21 00:09:13,801 INFO L226 Difference]: Without dead ends: 1372 [2022-03-21 00:09:13,805 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:13,805 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 90 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:13,805 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 535 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 504 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:09:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2022-03-21 00:09:13,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1091. [2022-03-21 00:09:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1086 states have (on average 1.5202578268876612) internal successors, (1651), 1086 states have internal predecessors, (1651), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1655 transitions. [2022-03-21 00:09:13,912 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1655 transitions. Word has length 193 [2022-03-21 00:09:13,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:13,912 INFO L478 AbstractCegarLoop]: Abstraction has 1091 states and 1655 transitions. [2022-03-21 00:09:13,913 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:13,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1655 transitions. [2022-03-21 00:09:13,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-03-21 00:09:13,916 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:13,916 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:13,916 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-21 00:09:13,916 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:13,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:13,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1166019930, now seen corresponding path program 1 times [2022-03-21 00:09:13,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:13,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1478162967] [2022-03-21 00:09:24,543 WARN L232 SmtUtils]: Spent 9.95s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:09:37,064 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:09:37,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1166019930, now seen corresponding path program 2 times [2022-03-21 00:09:37,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:09:37,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046920753] [2022-03-21 00:09:37,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:09:37,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:09:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:37,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:09:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:09:37,250 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-21 00:09:37,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:09:37,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046920753] [2022-03-21 00:09:37,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046920753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:37,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:37,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:37,251 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:09:37,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1478162967] [2022-03-21 00:09:37,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1478162967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:09:37,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:09:37,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:09:37,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39660928] [2022-03-21 00:09:37,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:09:37,252 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:09:37,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:37,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:09:37,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:09:37,253 INFO L87 Difference]: Start difference. First operand 1091 states and 1655 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:39,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:09:39,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:09:39,859 INFO L93 Difference]: Finished difference Result 2447 states and 3683 transitions. [2022-03-21 00:09:39,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:09:39,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 194 [2022-03-21 00:09:39,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:09:39,863 INFO L225 Difference]: With dead ends: 2447 [2022-03-21 00:09:39,863 INFO L226 Difference]: Without dead ends: 1372 [2022-03-21 00:09:39,866 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:09:39,866 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 88 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:09:39,866 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 533 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:09:39,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1372 states. [2022-03-21 00:09:39,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1372 to 1091. [2022-03-21 00:09:39,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1086 states have (on average 1.5156537753222836) internal successors, (1646), 1086 states have internal predecessors, (1646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:39,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1650 transitions. [2022-03-21 00:09:39,936 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1650 transitions. Word has length 194 [2022-03-21 00:09:39,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:09:39,936 INFO L478 AbstractCegarLoop]: Abstraction has 1091 states and 1650 transitions. [2022-03-21 00:09:39,936 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:09:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1650 transitions. [2022-03-21 00:09:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-03-21 00:09:39,939 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:09:39,939 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:09:39,940 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-21 00:09:39,940 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:09:39,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:09:39,940 INFO L85 PathProgramCache]: Analyzing trace with hash 164938377, now seen corresponding path program 1 times [2022-03-21 00:09:39,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:09:39,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1207301793] [2022-03-21 00:09:54,546 WARN L232 SmtUtils]: Spent 9.77s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:10:02,608 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:02,609 INFO L85 PathProgramCache]: Analyzing trace with hash 164938377, now seen corresponding path program 2 times [2022-03-21 00:10:02,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:02,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99882883] [2022-03-21 00:10:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:02,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:02,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-03-21 00:10:02,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:02,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99882883] [2022-03-21 00:10:02,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99882883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:02,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:02,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:02,819 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:02,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1207301793] [2022-03-21 00:10:02,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1207301793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:02,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:02,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:02,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010927280] [2022-03-21 00:10:02,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:02,820 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:02,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:02,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:02,821 INFO L87 Difference]: Start difference. First operand 1091 states and 1650 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:04,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:05,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:05,351 INFO L93 Difference]: Finished difference Result 2524 states and 3784 transitions. [2022-03-21 00:10:05,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:05,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 194 [2022-03-21 00:10:05,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:05,356 INFO L225 Difference]: With dead ends: 2524 [2022-03-21 00:10:05,356 INFO L226 Difference]: Without dead ends: 1618 [2022-03-21 00:10:05,358 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:05,358 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 112 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:05,358 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 484 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:10:05,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2022-03-21 00:10:05,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1193. [2022-03-21 00:10:05,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1188 states have (on average 1.5092592592592593) internal successors, (1793), 1188 states have internal predecessors, (1793), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1797 transitions. [2022-03-21 00:10:05,433 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1797 transitions. Word has length 194 [2022-03-21 00:10:05,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:05,433 INFO L478 AbstractCegarLoop]: Abstraction has 1193 states and 1797 transitions. [2022-03-21 00:10:05,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:05,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1797 transitions. [2022-03-21 00:10:05,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-21 00:10:05,437 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:05,438 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:05,438 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-21 00:10:05,438 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:05,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:05,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1168473336, now seen corresponding path program 1 times [2022-03-21 00:10:05,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:05,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [231195018] [2022-03-21 00:10:23,329 WARN L232 SmtUtils]: Spent 12.48s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:10:30,986 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:30,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1168473336, now seen corresponding path program 2 times [2022-03-21 00:10:30,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:30,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020581076] [2022-03-21 00:10:30,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:30,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:31,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-21 00:10:31,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:31,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020581076] [2022-03-21 00:10:31,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020581076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:31,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:31,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:31,188 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:31,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [231195018] [2022-03-21 00:10:31,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [231195018] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:31,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:31,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:31,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959366336] [2022-03-21 00:10:31,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:31,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:31,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:31,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:31,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:31,189 INFO L87 Difference]: Start difference. First operand 1193 states and 1797 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:33,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:33,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:33,841 INFO L93 Difference]: Finished difference Result 2637 states and 3952 transitions. [2022-03-21 00:10:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:33,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 195 [2022-03-21 00:10:33,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:33,847 INFO L225 Difference]: With dead ends: 2637 [2022-03-21 00:10:33,847 INFO L226 Difference]: Without dead ends: 1460 [2022-03-21 00:10:33,849 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:33,850 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 83 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:33,850 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 525 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:10:33,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-03-21 00:10:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1193. [2022-03-21 00:10:33,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1188 states have (on average 1.505050505050505) internal successors, (1788), 1188 states have internal predecessors, (1788), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:33,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1792 transitions. [2022-03-21 00:10:33,966 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1792 transitions. Word has length 195 [2022-03-21 00:10:33,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:33,966 INFO L478 AbstractCegarLoop]: Abstraction has 1193 states and 1792 transitions. [2022-03-21 00:10:33,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:33,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1792 transitions. [2022-03-21 00:10:33,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-21 00:10:33,969 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:33,970 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:33,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-21 00:10:33,970 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:33,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:33,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1079808289, now seen corresponding path program 1 times [2022-03-21 00:10:33,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:33,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [519909684] [2022-03-21 00:10:47,818 WARN L232 SmtUtils]: Spent 7.77s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:10:55,267 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:10:55,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1079808289, now seen corresponding path program 2 times [2022-03-21 00:10:55,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:10:55,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712210146] [2022-03-21 00:10:55,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:10:55,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:10:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:55,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:10:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:10:55,470 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 334 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-21 00:10:55,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:10:55,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712210146] [2022-03-21 00:10:55,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712210146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:55,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:55,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:55,471 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:10:55,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [519909684] [2022-03-21 00:10:55,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [519909684] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:10:55,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:10:55,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:10:55,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669756079] [2022-03-21 00:10:55,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:10:55,472 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:10:55,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:55,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:10:55,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:10:55,472 INFO L87 Difference]: Start difference. First operand 1193 states and 1792 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:57,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:10:58,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:10:58,053 INFO L93 Difference]: Finished difference Result 2592 states and 3887 transitions. [2022-03-21 00:10:58,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:10:58,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-21 00:10:58,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:10:58,057 INFO L225 Difference]: With dead ends: 2592 [2022-03-21 00:10:58,057 INFO L226 Difference]: Without dead ends: 1415 [2022-03-21 00:10:58,059 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:10:58,059 INFO L913 BasicCegarLoop]: 211 mSDtfsCounter, 74 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:10:58,060 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 511 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:10:58,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2022-03-21 00:10:58,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1193. [2022-03-21 00:10:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1188 states have (on average 1.5008417508417509) internal successors, (1783), 1188 states have internal predecessors, (1783), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1787 transitions. [2022-03-21 00:10:58,156 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1787 transitions. Word has length 196 [2022-03-21 00:10:58,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:10:58,157 INFO L478 AbstractCegarLoop]: Abstraction has 1193 states and 1787 transitions. [2022-03-21 00:10:58,157 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:10:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1787 transitions. [2022-03-21 00:10:58,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-03-21 00:10:58,160 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:10:58,160 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:10:58,160 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-21 00:10:58,160 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:10:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:10:58,161 INFO L85 PathProgramCache]: Analyzing trace with hash -2125464036, now seen corresponding path program 1 times [2022-03-21 00:10:58,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:10:58,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1308638261] [2022-03-21 00:11:16,379 WARN L232 SmtUtils]: Spent 11.55s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:11:27,346 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:11:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash -2125464036, now seen corresponding path program 2 times [2022-03-21 00:11:27,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:11:27,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173712477] [2022-03-21 00:11:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:11:27,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:11:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:27,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:11:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-03-21 00:11:27,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:11:27,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173712477] [2022-03-21 00:11:27,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173712477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:27,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:27,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:11:27,573 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:11:27,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1308638261] [2022-03-21 00:11:27,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1308638261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:27,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:27,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:11:27,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292153545] [2022-03-21 00:11:27,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:11:27,575 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:11:27,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:27,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:11:27,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:11:27,576 INFO L87 Difference]: Start difference. First operand 1193 states and 1787 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:29,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:11:30,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:11:30,097 INFO L93 Difference]: Finished difference Result 2909 states and 4318 transitions. [2022-03-21 00:11:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:11:30,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 196 [2022-03-21 00:11:30,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:11:30,104 INFO L225 Difference]: With dead ends: 2909 [2022-03-21 00:11:30,104 INFO L226 Difference]: Without dead ends: 1732 [2022-03-21 00:11:30,106 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:11:30,106 INFO L913 BasicCegarLoop]: 99 mSDtfsCounter, 93 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:11:30,107 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 282 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:11:30,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1732 states. [2022-03-21 00:11:30,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1732 to 1421. [2022-03-21 00:11:30,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1416 states have (on average 1.5176553672316384) internal successors, (2149), 1416 states have internal predecessors, (2149), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 2153 transitions. [2022-03-21 00:11:30,262 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 2153 transitions. Word has length 196 [2022-03-21 00:11:30,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:11:30,263 INFO L478 AbstractCegarLoop]: Abstraction has 1421 states and 2153 transitions. [2022-03-21 00:11:30,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:30,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 2153 transitions. [2022-03-21 00:11:30,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-21 00:11:30,266 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:11:30,266 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:11:30,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-21 00:11:30,267 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:11:30,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:11:30,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1893395013, now seen corresponding path program 1 times [2022-03-21 00:11:30,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:30,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1163759233] [2022-03-21 00:11:46,645 WARN L232 SmtUtils]: Spent 9.83s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:11:57,694 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:11:57,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1893395013, now seen corresponding path program 2 times [2022-03-21 00:11:57,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:11:57,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493329101] [2022-03-21 00:11:57,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:11:57,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:11:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:57,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:11:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:11:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-03-21 00:11:57,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:11:57,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493329101] [2022-03-21 00:11:57,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493329101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:57,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:57,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:11:57,925 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:11:57,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1163759233] [2022-03-21 00:11:57,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1163759233] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:11:57,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:11:57,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:11:57,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306211240] [2022-03-21 00:11:57,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:11:57,926 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:11:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:11:57,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:11:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:11:57,927 INFO L87 Difference]: Start difference. First operand 1421 states and 2153 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:11:59,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:12:00,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:12:00,371 INFO L93 Difference]: Finished difference Result 2858 states and 4319 transitions. [2022-03-21 00:12:00,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:12:00,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-21 00:12:00,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:12:00,378 INFO L225 Difference]: With dead ends: 2858 [2022-03-21 00:12:00,378 INFO L226 Difference]: Without dead ends: 1453 [2022-03-21 00:12:00,381 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:12:00,381 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 19 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:12:00,381 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 460 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 332 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:12:00,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-03-21 00:12:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1421. [2022-03-21 00:12:00,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1416 states have (on average 1.5141242937853108) internal successors, (2144), 1416 states have internal predecessors, (2144), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:12:00,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 2148 transitions. [2022-03-21 00:12:00,510 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 2148 transitions. Word has length 197 [2022-03-21 00:12:00,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:12:00,510 INFO L478 AbstractCegarLoop]: Abstraction has 1421 states and 2148 transitions. [2022-03-21 00:12:00,510 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:12:00,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 2148 transitions. [2022-03-21 00:12:00,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-21 00:12:00,532 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:12:00,533 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:12:00,533 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-21 00:12:00,533 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:12:00,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:12:00,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1803608870, now seen corresponding path program 1 times [2022-03-21 00:12:00,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:12:00,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1214978312] [2022-03-21 00:12:16,703 WARN L232 SmtUtils]: Spent 11.39s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:12:24,193 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:12:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1803608870, now seen corresponding path program 2 times [2022-03-21 00:12:24,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:12:24,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238310859] [2022-03-21 00:12:24,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:12:24,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:12:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:12:24,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:12:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:12:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-03-21 00:12:24,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:12:24,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238310859] [2022-03-21 00:12:24,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238310859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:12:24,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:12:24,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:12:24,393 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:12:24,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1214978312] [2022-03-21 00:12:24,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1214978312] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:12:24,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:12:24,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:12:24,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767266150] [2022-03-21 00:12:24,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:12:24,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:12:24,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:12:24,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:12:24,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:12:24,394 INFO L87 Difference]: Start difference. First operand 1421 states and 2148 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:12:26,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:12:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:12:27,052 INFO L93 Difference]: Finished difference Result 3286 states and 4942 transitions. [2022-03-21 00:12:27,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:12:27,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-03-21 00:12:27,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:12:27,061 INFO L225 Difference]: With dead ends: 3286 [2022-03-21 00:12:27,062 INFO L226 Difference]: Without dead ends: 1881 [2022-03-21 00:12:27,064 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:12:27,064 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 78 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:12:27,065 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 538 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:12:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2022-03-21 00:12:27,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1535. [2022-03-21 00:12:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1530 states have (on average 1.515032679738562) internal successors, (2318), 1530 states have internal predecessors, (2318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:12:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2322 transitions. [2022-03-21 00:12:27,197 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2322 transitions. Word has length 201 [2022-03-21 00:12:27,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:12:27,198 INFO L478 AbstractCegarLoop]: Abstraction has 1535 states and 2322 transitions. [2022-03-21 00:12:27,198 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:12:27,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2322 transitions. [2022-03-21 00:12:27,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-03-21 00:12:27,202 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:12:27,202 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:12:27,202 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-21 00:12:27,202 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:12:27,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:12:27,203 INFO L85 PathProgramCache]: Analyzing trace with hash 255429711, now seen corresponding path program 1 times [2022-03-21 00:12:27,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:12:27,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1505035268] [2022-03-21 00:12:41,764 WARN L232 SmtUtils]: Spent 8.25s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:12:49,057 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:12:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash 255429711, now seen corresponding path program 2 times [2022-03-21 00:12:49,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:12:49,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539679475] [2022-03-21 00:12:49,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:12:49,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:12:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:12:49,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:12:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:12:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-03-21 00:12:49,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:12:49,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539679475] [2022-03-21 00:12:49,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539679475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:12:49,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:12:49,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:12:49,298 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:12:49,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1505035268] [2022-03-21 00:12:49,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1505035268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:12:49,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:12:49,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:12:49,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163667664] [2022-03-21 00:12:49,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:12:49,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:12:49,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:12:49,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:12:49,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:12:49,300 INFO L87 Difference]: Start difference. First operand 1535 states and 2322 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:12:51,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:12:51,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:12:51,902 INFO L93 Difference]: Finished difference Result 3285 states and 4956 transitions. [2022-03-21 00:12:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:12:51,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-03-21 00:12:51,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:12:51,920 INFO L225 Difference]: With dead ends: 3285 [2022-03-21 00:12:51,920 INFO L226 Difference]: Without dead ends: 2009 [2022-03-21 00:12:51,923 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:12:51,923 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 111 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:12:51,924 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 478 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:12:51,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2022-03-21 00:12:52,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1535. [2022-03-21 00:12:52,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1530 states have (on average 1.4967320261437909) internal successors, (2290), 1530 states have internal predecessors, (2290), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:12:52,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2294 transitions. [2022-03-21 00:12:52,067 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2294 transitions. Word has length 215 [2022-03-21 00:12:52,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:12:52,067 INFO L478 AbstractCegarLoop]: Abstraction has 1535 states and 2294 transitions. [2022-03-21 00:12:52,068 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:12:52,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2294 transitions. [2022-03-21 00:12:52,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-03-21 00:12:52,071 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:12:52,071 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:12:52,072 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-21 00:12:52,072 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:12:52,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:12:52,072 INFO L85 PathProgramCache]: Analyzing trace with hash 69910624, now seen corresponding path program 1 times [2022-03-21 00:12:52,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:12:52,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [380457760] [2022-03-21 00:13:04,119 WARN L232 SmtUtils]: Spent 7.12s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:13:10,604 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:13:10,604 INFO L85 PathProgramCache]: Analyzing trace with hash 69910624, now seen corresponding path program 2 times [2022-03-21 00:13:10,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:13:10,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877044006] [2022-03-21 00:13:10,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:13:10,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:13:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:10,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:13:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-03-21 00:13:10,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:13:10,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877044006] [2022-03-21 00:13:10,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877044006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:10,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:10,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:10,832 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:13:10,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [380457760] [2022-03-21 00:13:10,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [380457760] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:10,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:10,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:10,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53546490] [2022-03-21 00:13:10,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:13:10,833 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:13:10,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:10,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:13:10,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:13:10,833 INFO L87 Difference]: Start difference. First operand 1535 states and 2294 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:13:12,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:13:13,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:13:13,446 INFO L93 Difference]: Finished difference Result 3383 states and 5036 transitions. [2022-03-21 00:13:13,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:13:13,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2022-03-21 00:13:13,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:13:13,451 INFO L225 Difference]: With dead ends: 3383 [2022-03-21 00:13:13,451 INFO L226 Difference]: Without dead ends: 1864 [2022-03-21 00:13:13,453 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:13:13,454 INFO L913 BasicCegarLoop]: 220 mSDtfsCounter, 81 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:13:13,454 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 530 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:13:13,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-03-21 00:13:13,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1535. [2022-03-21 00:13:13,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1530 states have (on average 1.49281045751634) internal successors, (2284), 1530 states have internal predecessors, (2284), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:13:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2288 transitions. [2022-03-21 00:13:13,582 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2288 transitions. Word has length 215 [2022-03-21 00:13:13,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:13:13,582 INFO L478 AbstractCegarLoop]: Abstraction has 1535 states and 2288 transitions. [2022-03-21 00:13:13,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:13:13,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2288 transitions. [2022-03-21 00:13:13,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-03-21 00:13:13,586 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:13:13,586 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:13:13,586 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-21 00:13:13,587 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:13:13,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:13:13,587 INFO L85 PathProgramCache]: Analyzing trace with hash -231635715, now seen corresponding path program 1 times [2022-03-21 00:13:13,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:13,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1748018442] [2022-03-21 00:13:24,051 WARN L232 SmtUtils]: Spent 9.48s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:13:37,189 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:13:37,189 INFO L85 PathProgramCache]: Analyzing trace with hash -231635715, now seen corresponding path program 2 times [2022-03-21 00:13:37,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:13:37,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675663679] [2022-03-21 00:13:37,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:13:37,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:13:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:37,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:13:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:37,412 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 393 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-03-21 00:13:37,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:13:37,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675663679] [2022-03-21 00:13:37,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675663679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:37,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:37,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:37,413 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:13:37,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1748018442] [2022-03-21 00:13:37,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1748018442] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:37,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:37,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:37,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250602505] [2022-03-21 00:13:37,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:13:37,413 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:13:37,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:37,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:13:37,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:13:37,414 INFO L87 Difference]: Start difference. First operand 1535 states and 2288 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:13:39,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:13:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:13:40,020 INFO L93 Difference]: Finished difference Result 3383 states and 5024 transitions. [2022-03-21 00:13:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:13:40,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 216 [2022-03-21 00:13:40,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:13:40,025 INFO L225 Difference]: With dead ends: 3383 [2022-03-21 00:13:40,025 INFO L226 Difference]: Without dead ends: 1864 [2022-03-21 00:13:40,027 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:13:40,028 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 79 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:13:40,028 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 528 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:13:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2022-03-21 00:13:40,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1535. [2022-03-21 00:13:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1530 states have (on average 1.488888888888889) internal successors, (2278), 1530 states have internal predecessors, (2278), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:13:40,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2282 transitions. [2022-03-21 00:13:40,138 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2282 transitions. Word has length 216 [2022-03-21 00:13:40,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:13:40,139 INFO L478 AbstractCegarLoop]: Abstraction has 1535 states and 2282 transitions. [2022-03-21 00:13:40,139 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:13:40,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2282 transitions. [2022-03-21 00:13:40,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-03-21 00:13:40,142 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:13:40,142 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:13:40,143 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-21 00:13:40,143 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:13:40,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:13:40,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1546125371, now seen corresponding path program 1 times [2022-03-21 00:13:40,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:40,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1029876581] [2022-03-21 00:13:56,863 WARN L232 SmtUtils]: Spent 10.45s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:14:04,622 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:04,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1546125371, now seen corresponding path program 2 times [2022-03-21 00:14:04,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:04,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784216347] [2022-03-21 00:14:04,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:04,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:04,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 402 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-03-21 00:14:04,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:04,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784216347] [2022-03-21 00:14:04,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784216347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:04,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:04,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:04,858 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:04,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1029876581] [2022-03-21 00:14:04,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1029876581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:04,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:04,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:04,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232662883] [2022-03-21 00:14:04,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:04,860 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:04,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:04,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:04,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:04,861 INFO L87 Difference]: Start difference. First operand 1535 states and 2282 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:14:06,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:07,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:07,418 INFO L93 Difference]: Finished difference Result 3431 states and 5068 transitions. [2022-03-21 00:14:07,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:07,419 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 217 [2022-03-21 00:14:07,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:07,422 INFO L225 Difference]: With dead ends: 3431 [2022-03-21 00:14:07,422 INFO L226 Difference]: Without dead ends: 1912 [2022-03-21 00:14:07,425 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:14:07,425 INFO L913 BasicCegarLoop]: 97 mSDtfsCounter, 116 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:07,427 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 278 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 382 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:14:07,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2022-03-21 00:14:07,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1535. [2022-03-21 00:14:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1530 states have (on average 1.4666666666666666) internal successors, (2244), 1530 states have internal predecessors, (2244), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:14:07,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2248 transitions. [2022-03-21 00:14:07,542 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2248 transitions. Word has length 217 [2022-03-21 00:14:07,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:07,543 INFO L478 AbstractCegarLoop]: Abstraction has 1535 states and 2248 transitions. [2022-03-21 00:14:07,543 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:14:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2248 transitions. [2022-03-21 00:14:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-03-21 00:14:07,546 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:07,546 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 7, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:14:07,546 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-21 00:14:07,546 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:07,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:07,546 INFO L85 PathProgramCache]: Analyzing trace with hash 97880514, now seen corresponding path program 1 times [2022-03-21 00:14:07,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:07,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1046455958] [2022-03-21 00:14:22,158 WARN L232 SmtUtils]: Spent 8.80s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:14:28,936 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:28,936 INFO L85 PathProgramCache]: Analyzing trace with hash 97880514, now seen corresponding path program 2 times [2022-03-21 00:14:28,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:28,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509628060] [2022-03-21 00:14:28,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:28,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:29,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:29,146 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-03-21 00:14:29,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:29,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509628060] [2022-03-21 00:14:29,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509628060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:29,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:29,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:29,147 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:29,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1046455958] [2022-03-21 00:14:29,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1046455958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:29,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:29,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:29,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13099064] [2022-03-21 00:14:29,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:29,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:29,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:29,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:29,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:29,149 INFO L87 Difference]: Start difference. First operand 1535 states and 2248 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:14:31,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:31,696 INFO L93 Difference]: Finished difference Result 3431 states and 5000 transitions. [2022-03-21 00:14:31,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:31,696 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 218 [2022-03-21 00:14:31,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:31,699 INFO L225 Difference]: With dead ends: 3431 [2022-03-21 00:14:31,699 INFO L226 Difference]: Without dead ends: 1912 [2022-03-21 00:14:31,701 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:14:31,701 INFO L913 BasicCegarLoop]: 98 mSDtfsCounter, 114 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:31,702 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 280 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:14:31,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2022-03-21 00:14:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1535. [2022-03-21 00:14:31,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1530 states have (on average 1.4444444444444444) internal successors, (2210), 1530 states have internal predecessors, (2210), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:14:31,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2214 transitions. [2022-03-21 00:14:31,823 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2214 transitions. Word has length 218 [2022-03-21 00:14:31,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:31,823 INFO L478 AbstractCegarLoop]: Abstraction has 1535 states and 2214 transitions. [2022-03-21 00:14:31,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:14:31,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2214 transitions. [2022-03-21 00:14:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-03-21 00:14:31,825 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:31,825 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:14:31,825 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-21 00:14:31,825 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:31,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:31,826 INFO L85 PathProgramCache]: Analyzing trace with hash -252957758, now seen corresponding path program 1 times [2022-03-21 00:14:31,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:31,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [233990708] [2022-03-21 00:14:52,446 WARN L232 SmtUtils]: Spent 13.66s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:15:03,231 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:03,231 INFO L85 PathProgramCache]: Analyzing trace with hash -252957758, now seen corresponding path program 2 times [2022-03-21 00:15:03,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:03,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144933669] [2022-03-21 00:15:03,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:03,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:03,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:03,439 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-03-21 00:15:03,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:03,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144933669] [2022-03-21 00:15:03,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144933669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:03,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:03,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:03,440 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:03,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [233990708] [2022-03-21 00:15:03,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [233990708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:03,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:03,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:03,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968229734] [2022-03-21 00:15:03,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:03,441 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:03,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:03,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:03,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:03,442 INFO L87 Difference]: Start difference. First operand 1535 states and 2214 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:05,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:05,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:05,926 INFO L93 Difference]: Finished difference Result 3131 states and 4510 transitions. [2022-03-21 00:15:05,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:05,927 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 219 [2022-03-21 00:15:05,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:05,930 INFO L225 Difference]: With dead ends: 3131 [2022-03-21 00:15:05,930 INFO L226 Difference]: Without dead ends: 1612 [2022-03-21 00:15:05,932 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:15:05,932 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 17 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:05,932 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 466 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 351 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:15:05,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2022-03-21 00:15:06,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1577. [2022-03-21 00:15:06,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 1572 states have (on average 1.440203562340967) internal successors, (2264), 1572 states have internal predecessors, (2264), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:06,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 2268 transitions. [2022-03-21 00:15:06,079 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 2268 transitions. Word has length 219 [2022-03-21 00:15:06,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:06,079 INFO L478 AbstractCegarLoop]: Abstraction has 1577 states and 2268 transitions. [2022-03-21 00:15:06,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 4 states have internal predecessors, (131), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:06,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 2268 transitions. [2022-03-21 00:15:06,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-03-21 00:15:06,081 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:06,081 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:15:06,081 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-21 00:15:06,081 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:06,082 INFO L85 PathProgramCache]: Analyzing trace with hash 944424234, now seen corresponding path program 1 times [2022-03-21 00:15:06,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:06,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [296462527] [2022-03-21 00:15:28,711 WARN L232 SmtUtils]: Spent 16.86s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:15:36,171 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash 944424234, now seen corresponding path program 2 times [2022-03-21 00:15:36,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:36,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534406977] [2022-03-21 00:15:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:36,365 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-21 00:15:36,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:36,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534406977] [2022-03-21 00:15:36,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534406977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:36,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:36,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:36,366 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:36,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [296462527] [2022-03-21 00:15:36,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [296462527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:36,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:36,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:36,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732260722] [2022-03-21 00:15:36,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:36,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:36,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:36,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:36,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:36,389 INFO L87 Difference]: Start difference. First operand 1577 states and 2268 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:38,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:39,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:39,060 INFO L93 Difference]: Finished difference Result 3587 states and 5152 transitions. [2022-03-21 00:15:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:39,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 226 [2022-03-21 00:15:39,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:39,064 INFO L225 Difference]: With dead ends: 3587 [2022-03-21 00:15:39,065 INFO L226 Difference]: Without dead ends: 2026 [2022-03-21 00:15:39,067 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:15:39,067 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 73 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:39,068 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 526 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:15:39,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2022-03-21 00:15:39,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1697. [2022-03-21 00:15:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1692 states have (on average 1.433806146572104) internal successors, (2426), 1692 states have internal predecessors, (2426), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2430 transitions. [2022-03-21 00:15:39,231 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2430 transitions. Word has length 226 [2022-03-21 00:15:39,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:39,231 INFO L478 AbstractCegarLoop]: Abstraction has 1697 states and 2430 transitions. [2022-03-21 00:15:39,231 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:15:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2430 transitions. [2022-03-21 00:15:39,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-03-21 00:15:39,233 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:39,234 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:15:39,234 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-21 00:15:39,234 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:39,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash -932058584, now seen corresponding path program 1 times [2022-03-21 00:15:39,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:39,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [787182378] [2022-03-21 00:15:53,378 WARN L232 SmtUtils]: Spent 8.85s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:16:00,483 WARN L232 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 154 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:16:03,160 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:03,160 INFO L85 PathProgramCache]: Analyzing trace with hash -932058584, now seen corresponding path program 2 times [2022-03-21 00:16:03,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:03,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395740810] [2022-03-21 00:16:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:03,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:03,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-21 00:16:03,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:03,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395740810] [2022-03-21 00:16:03,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395740810] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:03,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:03,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:03,373 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:03,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [787182378] [2022-03-21 00:16:03,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [787182378] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:03,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:03,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:03,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584469943] [2022-03-21 00:16:03,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:03,374 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:16:03,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:03,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:16:03,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:16:03,375 INFO L87 Difference]: Start difference. First operand 1697 states and 2430 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:16:05,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:06,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:06,063 INFO L93 Difference]: Finished difference Result 3821 states and 5470 transitions. [2022-03-21 00:16:06,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:06,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 226 [2022-03-21 00:16:06,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:06,068 INFO L225 Difference]: With dead ends: 3821 [2022-03-21 00:16:06,068 INFO L226 Difference]: Without dead ends: 2140 [2022-03-21 00:16:06,074 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:16:06,075 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 73 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:06,075 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 528 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 493 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:16:06,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-03-21 00:16:06,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1691. [2022-03-21 00:16:06,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1686 states have (on average 1.435349940688019) internal successors, (2420), 1686 states have internal predecessors, (2420), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:16:06,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2424 transitions. [2022-03-21 00:16:06,288 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2424 transitions. Word has length 226 [2022-03-21 00:16:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:06,288 INFO L478 AbstractCegarLoop]: Abstraction has 1691 states and 2424 transitions. [2022-03-21 00:16:06,289 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:16:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2424 transitions. [2022-03-21 00:16:06,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-21 00:16:06,291 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:06,291 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:16:06,291 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-21 00:16:06,291 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:06,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:06,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1157522256, now seen corresponding path program 1 times [2022-03-21 00:16:06,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:06,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [561948990] [2022-03-21 00:16:19,577 WARN L232 SmtUtils]: Spent 7.55s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:16:27,495 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:27,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1157522256, now seen corresponding path program 2 times [2022-03-21 00:16:27,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:27,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363885904] [2022-03-21 00:16:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:27,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:27,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:27,729 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-03-21 00:16:27,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:27,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363885904] [2022-03-21 00:16:27,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363885904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:27,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:27,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:27,730 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:27,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [561948990] [2022-03-21 00:16:27,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [561948990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:27,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:27,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:27,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283896870] [2022-03-21 00:16:27,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:27,731 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:16:27,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:27,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:16:27,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:16:27,731 INFO L87 Difference]: Start difference. First operand 1691 states and 2424 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:16:29,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:30,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:30,448 INFO L93 Difference]: Finished difference Result 3815 states and 5458 transitions. [2022-03-21 00:16:30,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:30,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-21 00:16:30,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:30,455 INFO L225 Difference]: With dead ends: 3815 [2022-03-21 00:16:30,455 INFO L226 Difference]: Without dead ends: 2140 [2022-03-21 00:16:30,459 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:16:30,459 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 79 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:30,459 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 524 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:16:30,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-03-21 00:16:30,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1769. [2022-03-21 00:16:30,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1764 states have (on average 1.433106575963719) internal successors, (2528), 1764 states have internal predecessors, (2528), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:16:30,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2532 transitions. [2022-03-21 00:16:30,678 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2532 transitions. Word has length 240 [2022-03-21 00:16:30,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:30,679 INFO L478 AbstractCegarLoop]: Abstraction has 1769 states and 2532 transitions. [2022-03-21 00:16:30,679 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:16:30,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2532 transitions. [2022-03-21 00:16:30,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-03-21 00:16:30,682 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:30,682 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:16:30,682 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-21 00:16:30,682 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:30,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2106404142, now seen corresponding path program 1 times [2022-03-21 00:16:30,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:30,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1856588866] [2022-03-21 00:17:04,009 WARN L232 SmtUtils]: Spent 27.72s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:17:13,517 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:17:13,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2106404142, now seen corresponding path program 2 times [2022-03-21 00:17:13,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:17:13,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797712864] [2022-03-21 00:17:13,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:17:13,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:17:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:13,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:17:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:13,713 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 456 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-03-21 00:17:13,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:17:13,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797712864] [2022-03-21 00:17:13,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797712864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:13,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:13,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:13,714 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:17:13,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1856588866] [2022-03-21 00:17:13,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1856588866] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:13,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:13,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:13,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332679375] [2022-03-21 00:17:13,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:17:13,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:17:13,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:13,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:17:13,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:17:13,716 INFO L87 Difference]: Start difference. First operand 1769 states and 2532 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:17:15,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:16,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:17:16,426 INFO L93 Difference]: Finished difference Result 3893 states and 5560 transitions. [2022-03-21 00:17:16,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:17:16,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 240 [2022-03-21 00:17:16,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:17:16,434 INFO L225 Difference]: With dead ends: 3893 [2022-03-21 00:17:16,434 INFO L226 Difference]: Without dead ends: 2140 [2022-03-21 00:17:16,440 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:17:16,441 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 79 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:17:16,441 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 526 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 492 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:17:16,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-03-21 00:17:16,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1691. [2022-03-21 00:17:16,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1686 states have (on average 1.431791221826809) internal successors, (2414), 1686 states have internal predecessors, (2414), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:17:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2418 transitions. [2022-03-21 00:17:16,703 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2418 transitions. Word has length 240 [2022-03-21 00:17:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:17:16,704 INFO L478 AbstractCegarLoop]: Abstraction has 1691 states and 2418 transitions. [2022-03-21 00:17:16,704 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:17:16,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2418 transitions. [2022-03-21 00:17:16,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-03-21 00:17:16,707 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:17:16,707 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:17:16,708 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-21 00:17:16,708 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:17:16,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:17:16,708 INFO L85 PathProgramCache]: Analyzing trace with hash 372650669, now seen corresponding path program 1 times [2022-03-21 00:17:16,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:16,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1532724466] [2022-03-21 00:17:28,495 WARN L232 SmtUtils]: Spent 10.41s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:17:39,992 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:17:39,993 INFO L85 PathProgramCache]: Analyzing trace with hash 372650669, now seen corresponding path program 2 times [2022-03-21 00:17:39,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:17:39,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465078685] [2022-03-21 00:17:39,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:17:39,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:17:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:40,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:17:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:40,195 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-03-21 00:17:40,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:17:40,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465078685] [2022-03-21 00:17:40,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465078685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:40,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:40,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:40,195 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:17:40,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1532724466] [2022-03-21 00:17:40,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1532724466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:40,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:40,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:40,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452320868] [2022-03-21 00:17:40,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:17:40,196 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:17:40,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:40,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:17:40,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:17:40,197 INFO L87 Difference]: Start difference. First operand 1691 states and 2418 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:17:42,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:42,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:17:42,838 INFO L93 Difference]: Finished difference Result 3743 states and 5340 transitions. [2022-03-21 00:17:42,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:17:42,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 241 [2022-03-21 00:17:42,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:17:42,843 INFO L225 Difference]: With dead ends: 3743 [2022-03-21 00:17:42,843 INFO L226 Difference]: Without dead ends: 2068 [2022-03-21 00:17:42,847 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:17:42,847 INFO L913 BasicCegarLoop]: 109 mSDtfsCounter, 115 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:17:42,848 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 302 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 395 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:17:42,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2022-03-21 00:17:43,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1691. [2022-03-21 00:17:43,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1686 states have (on average 1.4116251482799524) internal successors, (2380), 1686 states have internal predecessors, (2380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:17:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2384 transitions. [2022-03-21 00:17:43,086 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2384 transitions. Word has length 241 [2022-03-21 00:17:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:17:43,087 INFO L478 AbstractCegarLoop]: Abstraction has 1691 states and 2384 transitions. [2022-03-21 00:17:43,087 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:17:43,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2384 transitions. [2022-03-21 00:17:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-21 00:17:43,090 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:17:43,090 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:17:43,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-21 00:17:43,090 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:17:43,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:17:43,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1834770450, now seen corresponding path program 1 times [2022-03-21 00:17:43,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:43,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1858183524] [2022-03-21 00:18:00,180 WARN L232 SmtUtils]: Spent 8.90s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:18:09,781 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:18:09,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1834770450, now seen corresponding path program 2 times [2022-03-21 00:18:09,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:18:09,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356859498] [2022-03-21 00:18:09,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:18:09,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:18:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:09,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:18:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-21 00:18:09,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:18:09,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356859498] [2022-03-21 00:18:09,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356859498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:09,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:09,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:18:09,972 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:18:09,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1858183524] [2022-03-21 00:18:09,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1858183524] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:09,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:09,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:18:09,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355640706] [2022-03-21 00:18:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:18:09,973 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:18:09,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:09,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:18:09,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:18:09,973 INFO L87 Difference]: Start difference. First operand 1691 states and 2384 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:18:11,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:12,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:18:12,633 INFO L93 Difference]: Finished difference Result 3743 states and 5272 transitions. [2022-03-21 00:18:12,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:18:12,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-21 00:18:12,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:18:12,637 INFO L225 Difference]: With dead ends: 3743 [2022-03-21 00:18:12,637 INFO L226 Difference]: Without dead ends: 2068 [2022-03-21 00:18:12,639 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:18:12,640 INFO L913 BasicCegarLoop]: 98 mSDtfsCounter, 90 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:18:12,640 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 280 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:18:12,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2022-03-21 00:18:12,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1763. [2022-03-21 00:18:12,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1763 states, 1758 states have (on average 1.4323094425483505) internal successors, (2518), 1758 states have internal predecessors, (2518), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:18:12,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2522 transitions. [2022-03-21 00:18:12,913 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2522 transitions. Word has length 244 [2022-03-21 00:18:12,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:18:12,914 INFO L478 AbstractCegarLoop]: Abstraction has 1763 states and 2522 transitions. [2022-03-21 00:18:12,914 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:18:12,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2522 transitions. [2022-03-21 00:18:12,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-21 00:18:12,917 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:18:12,918 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:18:12,918 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-21 00:18:12,918 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:18:12,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:18:12,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1796436705, now seen corresponding path program 1 times [2022-03-21 00:18:12,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:12,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1500568732] [2022-03-21 00:18:35,004 WARN L232 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:18:47,625 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:18:47,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1796436705, now seen corresponding path program 2 times [2022-03-21 00:18:47,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:18:47,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550248883] [2022-03-21 00:18:47,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:18:47,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:18:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:47,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:18:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:47,833 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-21 00:18:47,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:18:47,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550248883] [2022-03-21 00:18:47,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550248883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:47,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:47,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:18:47,834 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:18:47,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1500568732] [2022-03-21 00:18:47,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1500568732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:47,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:47,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:18:47,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485651685] [2022-03-21 00:18:47,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:18:47,834 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:18:47,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:47,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:18:47,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:18:47,835 INFO L87 Difference]: Start difference. First operand 1763 states and 2522 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:18:49,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:50,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:18:50,416 INFO L93 Difference]: Finished difference Result 3773 states and 5384 transitions. [2022-03-21 00:18:50,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:18:50,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-21 00:18:50,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:18:50,419 INFO L225 Difference]: With dead ends: 3773 [2022-03-21 00:18:50,419 INFO L226 Difference]: Without dead ends: 2026 [2022-03-21 00:18:50,421 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:18:50,421 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 26 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:18:50,421 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 480 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:18:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2026 states. [2022-03-21 00:18:50,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2026 to 1961. [2022-03-21 00:18:50,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1956 states have (on average 1.4284253578732107) internal successors, (2794), 1956 states have internal predecessors, (2794), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:18:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2798 transitions. [2022-03-21 00:18:50,638 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2798 transitions. Word has length 244 [2022-03-21 00:18:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:18:50,638 INFO L478 AbstractCegarLoop]: Abstraction has 1961 states and 2798 transitions. [2022-03-21 00:18:50,638 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:18:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2798 transitions. [2022-03-21 00:18:50,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-21 00:18:50,640 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:18:50,641 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:18:50,641 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-21 00:18:50,641 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:18:50,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:18:50,641 INFO L85 PathProgramCache]: Analyzing trace with hash 236957341, now seen corresponding path program 1 times [2022-03-21 00:18:50,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:50,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1408339110] [2022-03-21 00:19:09,596 WARN L232 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:19:20,032 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:19:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash 236957341, now seen corresponding path program 2 times [2022-03-21 00:19:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:19:20,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618041001] [2022-03-21 00:19:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:19:20,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:19:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:19:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:19:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:19:20,209 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 438 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-21 00:19:20,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:19:20,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618041001] [2022-03-21 00:19:20,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618041001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:19:20,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:19:20,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:19:20,209 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:19:20,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1408339110] [2022-03-21 00:19:20,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1408339110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:19:20,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:19:20,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:19:20,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870654382] [2022-03-21 00:19:20,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:19:20,210 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:19:20,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:19:20,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:19:20,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:19:20,211 INFO L87 Difference]: Start difference. First operand 1961 states and 2798 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:19:22,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:19:22,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:19:22,764 INFO L93 Difference]: Finished difference Result 4007 states and 5714 transitions. [2022-03-21 00:19:22,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:19:22,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 244 [2022-03-21 00:19:22,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:19:22,766 INFO L225 Difference]: With dead ends: 4007 [2022-03-21 00:19:22,766 INFO L226 Difference]: Without dead ends: 2062 [2022-03-21 00:19:22,768 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-21 00:19:22,769 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 20 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:19:22,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 472 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 366 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:19:22,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2062 states. [2022-03-21 00:19:23,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2062 to 2015. [2022-03-21 00:19:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2015 states, 2010 states have (on average 1.4288557213930348) internal successors, (2872), 2010 states have internal predecessors, (2872), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:19:23,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2015 states to 2015 states and 2876 transitions. [2022-03-21 00:19:23,038 INFO L78 Accepts]: Start accepts. Automaton has 2015 states and 2876 transitions. Word has length 244 [2022-03-21 00:19:23,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:19:23,038 INFO L478 AbstractCegarLoop]: Abstraction has 2015 states and 2876 transitions. [2022-03-21 00:19:23,038 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-21 00:19:23,038 INFO L276 IsEmpty]: Start isEmpty. Operand 2015 states and 2876 transitions. [2022-03-21 00:19:23,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-03-21 00:19:23,042 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:19:23,042 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:19:23,042 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-21 00:19:23,042 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:19:23,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:19:23,042 INFO L85 PathProgramCache]: Analyzing trace with hash 117979849, now seen corresponding path program 1 times [2022-03-21 00:19:23,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:19:23,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1882783442] [2022-03-21 00:19:37,986 WARN L232 SmtUtils]: Spent 7.76s on a formula simplification that was a NOOP. DAG size: 229 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)