/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_srvr.blast.16.i.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-21 00:13:41,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-21 00:13:41,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-21 00:13:41,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-21 00:13:41,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-21 00:13:41,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-21 00:13:41,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-21 00:13:41,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-21 00:13:41,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-21 00:13:41,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-21 00:13:41,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-21 00:13:41,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-21 00:13:41,172 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-21 00:13:41,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-21 00:13:41,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-21 00:13:41,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-21 00:13:41,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-21 00:13:41,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-21 00:13:41,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-21 00:13:41,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-21 00:13:41,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-21 00:13:41,196 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 00:13:41,210 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-21 00:13:41,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-21 00:13:41,213 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-21 00:13:41,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-21 00:13:41,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-21 00:13:41,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-21 00:13:41,213 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-21 00:13:41,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-21 00:13:41,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-21 00:13:41,214 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-21 00:13:41,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-21 00:13:41,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-21 00:13:41,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-21 00:13:41,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-21 00:13:41,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-21 00:13:41,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:13:41,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-21 00:13:41,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-21 00:13:41,216 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-21 00:13:41,216 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-21 00:13:41,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-21 00:13:41,216 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-21 00:13:41,216 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-21 00:13:41,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-21 00:13:41,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-21 00:13:41,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-21 00:13:41,478 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-21 00:13:41,479 INFO L275 PluginConnector]: CDTParser initialized [2022-03-21 00:13:41,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-03-21 00:13:41,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eee1a6f9/423bf32aa7e947d09a2abbb23a9c5738/FLAGc5762e893 [2022-03-21 00:13:42,128 INFO L306 CDTParser]: Found 1 translation units. [2022-03-21 00:13:42,130 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c [2022-03-21 00:13:42,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eee1a6f9/423bf32aa7e947d09a2abbb23a9c5738/FLAGc5762e893 [2022-03-21 00:13:42,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7eee1a6f9/423bf32aa7e947d09a2abbb23a9c5738 [2022-03-21 00:13:42,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-21 00:13:42,551 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-21 00:13:42,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-21 00:13:42,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-21 00:13:42,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-21 00:13:42,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:13:42" (1/1) ... [2022-03-21 00:13:42,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b97543e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:42, skipping insertion in model container [2022-03-21 00:13:42,556 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.03 12:13:42" (1/1) ... [2022-03-21 00:13:42,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-21 00:13:42,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-21 00:13:43,018 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_srvr.blast.16.i.cil-2.c[77660,77673] [2022-03-21 00:13:43,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:13:43,060 INFO L203 MainTranslator]: Completed pre-run [2022-03-21 00:13:43,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-2.c[77660,77673] [2022-03-21 00:13:43,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-21 00:13:43,222 INFO L208 MainTranslator]: Completed translation [2022-03-21 00:13:43,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43 WrapperNode [2022-03-21 00:13:43,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-21 00:13:43,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-21 00:13:43,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-21 00:13:43,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-21 00:13:43,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43" (1/1) ... [2022-03-21 00:13:43,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43" (1/1) ... [2022-03-21 00:13:43,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43" (1/1) ... [2022-03-21 00:13:43,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43" (1/1) ... [2022-03-21 00:13:43,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43" (1/1) ... [2022-03-21 00:13:43,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43" (1/1) ... [2022-03-21 00:13:43,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43" (1/1) ... [2022-03-21 00:13:43,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-21 00:13:43,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-21 00:13:43,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-21 00:13:43,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-21 00:13:43,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43" (1/1) ... [2022-03-21 00:13:43,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-21 00:13:43,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-21 00:13:43,387 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 00:13:43,410 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 00:13:43,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-21 00:13:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-21 00:13:43,430 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-21 00:13:43,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-21 00:13:43,431 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-21 00:13:43,431 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-21 00:13:43,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-21 00:13:43,432 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-21 00:13:43,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-21 00:13:43,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-21 00:13:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-21 00:13:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-21 00:13:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-21 00:13:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-21 00:13:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-21 00:13:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-21 00:13:43,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-21 00:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-21 00:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-21 00:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-21 00:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-21 00:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-21 00:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-21 00:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-21 00:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-21 00:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-21 00:13:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-21 00:13:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-21 00:13:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-21 00:13:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-21 00:13:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-21 00:13:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-21 00:13:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-21 00:13:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-21 00:13:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-21 00:13:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-21 00:13:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-21 00:13:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-21 00:13:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-21 00:13:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-21 00:13:43,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-21 00:13:43,664 INFO L234 CfgBuilder]: Building ICFG [2022-03-21 00:13:43,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-21 00:13:44,817 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-21 00:13:45,359 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-21 00:13:45,359 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-21 00:13:45,372 INFO L275 CfgBuilder]: Performing block encoding [2022-03-21 00:13:45,383 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-21 00:13:45,383 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-21 00:13:45,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:13:45 BoogieIcfgContainer [2022-03-21 00:13:45,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-21 00:13:45,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-21 00:13:45,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-21 00:13:45,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-21 00:13:45,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.03 12:13:42" (1/3) ... [2022-03-21 00:13:45,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a643e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:13:45, skipping insertion in model container [2022-03-21 00:13:45,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.03 12:13:43" (2/3) ... [2022-03-21 00:13:45,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a643e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.03 12:13:45, skipping insertion in model container [2022-03-21 00:13:45,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.03 12:13:45" (3/3) ... [2022-03-21 00:13:45,394 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-2.c [2022-03-21 00:13:45,400 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-21 00:13:45,401 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-21 00:13:45,437 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-21 00:13:45,449 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 00:13:45,450 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-21 00:13:45,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 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 00:13:45,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-21 00:13:45,495 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:13:45,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:13:45,496 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:13:45,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:13:45,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2779566, now seen corresponding path program 1 times [2022-03-21 00:13:45,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:45,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1625427751] [2022-03-21 00:13:45,527 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:13:45,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2779566, now seen corresponding path program 2 times [2022-03-21 00:13:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:13:45,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019225277] [2022-03-21 00:13:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:13:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:13:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:46,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:13:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:46,157 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 00:13:46,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:13:46,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019225277] [2022-03-21 00:13:46,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019225277] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:46,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:46,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:46,162 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:13:46,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1625427751] [2022-03-21 00:13:46,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1625427751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:46,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:46,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:46,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552853672] [2022-03-21 00:13:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:13:46,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:13:46,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:46,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:13:46,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:13:46,209 INFO L87 Difference]: Start difference. First operand has 167 states, 159 states have (on average 1.7232704402515724) internal successors, (274), 160 states have internal predecessors, (274), 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 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 00:13:49,434 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 00:13:51,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:13:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:13:52,422 INFO L93 Difference]: Finished difference Result 456 states and 778 transitions. [2022-03-21 00:13:52,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:13:52,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 51 [2022-03-21 00:13:52,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:13:52,440 INFO L225 Difference]: With dead ends: 456 [2022-03-21 00:13:52,441 INFO L226 Difference]: Without dead ends: 278 [2022-03-21 00:13:52,444 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 00:13:52,447 INFO L913 BasicCegarLoop]: 176 mSDtfsCounter, 170 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:13:52,448 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 517 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 552 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-21 00:13:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-03-21 00:13:52,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 191. [2022-03-21 00:13:52,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.6236559139784945) internal successors, (302), 186 states have internal predecessors, (302), 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 00:13:52,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 306 transitions. [2022-03-21 00:13:52,504 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 306 transitions. Word has length 51 [2022-03-21 00:13:52,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:13:52,505 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 306 transitions. [2022-03-21 00:13:52,505 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 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 00:13:52,505 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 306 transitions. [2022-03-21 00:13:52,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-03-21 00:13:52,507 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:13:52,507 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, 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 00:13:52,508 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-21 00:13:52,508 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:13:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:13:52,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1115524430, now seen corresponding path program 1 times [2022-03-21 00:13:52,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:52,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1933541134] [2022-03-21 00:13:52,510 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-21 00:13:52,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1115524430, now seen corresponding path program 2 times [2022-03-21 00:13:52,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:13:52,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905302581] [2022-03-21 00:13:52,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:13:52,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:13:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:52,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:13:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:13:52,673 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 00:13:52,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:13:52,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905302581] [2022-03-21 00:13:52,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905302581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:52,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:52,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:52,683 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:13:52,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1933541134] [2022-03-21 00:13:52,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1933541134] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:13:52,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:13:52,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:13:52,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036666461] [2022-03-21 00:13:52,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:13:52,685 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:13:52,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:52,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:13:52,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:13:52,686 INFO L87 Difference]: Start difference. First operand 191 states and 306 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 00:13:54,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:13:56,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:13:57,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:13:59,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:13:59,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:13:59,876 INFO L93 Difference]: Finished difference Result 493 states and 793 transitions. [2022-03-21 00:13:59,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:13:59,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 52 [2022-03-21 00:13:59,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:13:59,880 INFO L225 Difference]: With dead ends: 493 [2022-03-21 00:13:59,880 INFO L226 Difference]: Without dead ends: 317 [2022-03-21 00:13:59,881 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 00:13:59,882 INFO L913 BasicCegarLoop]: 149 mSDtfsCounter, 137 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:13:59,883 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 424 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 507 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-03-21 00:13:59,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2022-03-21 00:13:59,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 231. [2022-03-21 00:13:59,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.663716814159292) internal successors, (376), 226 states have internal predecessors, (376), 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 00:13:59,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 380 transitions. [2022-03-21 00:13:59,904 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 380 transitions. Word has length 52 [2022-03-21 00:13:59,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:13:59,905 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 380 transitions. [2022-03-21 00:13:59,905 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 00:13:59,905 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 380 transitions. [2022-03-21 00:13:59,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-03-21 00:13:59,908 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:13:59,908 INFO L499 BasicCegarLoop]: trace histogram [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, 1, 1] [2022-03-21 00:13:59,908 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-21 00:13:59,908 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:13:59,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:13:59,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1310946806, now seen corresponding path program 1 times [2022-03-21 00:13:59,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:13:59,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [942488231] [2022-03-21 00:13:59,939 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:13:59,939 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:13:59,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1310946806, now seen corresponding path program 2 times [2022-03-21 00:13:59,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:13:59,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033847910] [2022-03-21 00:13:59,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:13:59,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:00,165 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-21 00:14:00,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:00,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033847910] [2022-03-21 00:14:00,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033847910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:00,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:00,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:00,167 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:00,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [942488231] [2022-03-21 00:14:00,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [942488231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:00,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:00,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:00,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218556795] [2022-03-21 00:14:00,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:00,168 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:00,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:00,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:00,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:00,169 INFO L87 Difference]: Start difference. First operand 231 states and 380 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:03,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:05,423 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:05,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:05,909 INFO L93 Difference]: Finished difference Result 475 states and 782 transitions. [2022-03-21 00:14:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:05,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:05,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:05,911 INFO L225 Difference]: With dead ends: 475 [2022-03-21 00:14:05,912 INFO L226 Difference]: Without dead ends: 259 [2022-03-21 00:14:05,913 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 00:14:05,914 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 22 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:05,914 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 535 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-21 00:14:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-21 00:14:05,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 242. [2022-03-21 00:14:05,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.6666666666666667) internal successors, (395), 237 states have internal predecessors, (395), 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 00:14:05,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 399 transitions. [2022-03-21 00:14:05,931 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 399 transitions. Word has length 80 [2022-03-21 00:14:05,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:05,931 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 399 transitions. [2022-03-21 00:14:05,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:05,932 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 399 transitions. [2022-03-21 00:14:05,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-21 00:14:05,934 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:05,935 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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 00:14:05,935 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-21 00:14:05,935 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:05,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:05,936 INFO L85 PathProgramCache]: Analyzing trace with hash -338295341, now seen corresponding path program 1 times [2022-03-21 00:14:05,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:05,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [840604077] [2022-03-21 00:14:05,947 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:14:05,948 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:05,948 INFO L85 PathProgramCache]: Analyzing trace with hash -338295341, now seen corresponding path program 2 times [2022-03-21 00:14:05,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:05,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491489208] [2022-03-21 00:14:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:05,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:06,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:06,135 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:14:06,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:06,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491489208] [2022-03-21 00:14:06,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491489208] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:06,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:06,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:06,136 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:06,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [840604077] [2022-03-21 00:14:06,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [840604077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:06,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:06,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:06,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973666527] [2022-03-21 00:14:06,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:06,142 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:06,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:06,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:06,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:06,143 INFO L87 Difference]: Start difference. First operand 242 states and 399 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 00:14:10,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:10,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:10,505 INFO L93 Difference]: Finished difference Result 475 states and 781 transitions. [2022-03-21 00:14:10,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:10,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 93 [2022-03-21 00:14:10,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:10,507 INFO L225 Difference]: With dead ends: 475 [2022-03-21 00:14:10,507 INFO L226 Difference]: Without dead ends: 259 [2022-03-21 00:14:10,508 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 00:14:10,509 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 24 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:10,509 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 537 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-03-21 00:14:10,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-03-21 00:14:10,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 242. [2022-03-21 00:14:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.6624472573839661) internal successors, (394), 237 states have internal predecessors, (394), 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 00:14:10,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 398 transitions. [2022-03-21 00:14:10,522 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 398 transitions. Word has length 93 [2022-03-21 00:14:10,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:10,522 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 398 transitions. [2022-03-21 00:14:10,522 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 00:14:10,523 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 398 transitions. [2022-03-21 00:14:10,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-21 00:14:10,525 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:10,525 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:14:10,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-21 00:14:10,526 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:10,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:10,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1659065219, now seen corresponding path program 1 times [2022-03-21 00:14:10,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:10,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1029204039] [2022-03-21 00:14:10,541 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:14:10,542 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:10,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1659065219, now seen corresponding path program 2 times [2022-03-21 00:14:10,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:10,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107569287] [2022-03-21 00:14:10,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:10,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:10,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:14:10,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:10,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107569287] [2022-03-21 00:14:10,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107569287] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:10,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:10,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:10,696 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:10,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1029204039] [2022-03-21 00:14:10,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1029204039] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:10,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:10,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:10,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645735031] [2022-03-21 00:14:10,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:10,697 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:10,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:10,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:10,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:10,698 INFO L87 Difference]: Start difference. First operand 242 states and 398 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:13,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:15,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:16,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:16,817 INFO L93 Difference]: Finished difference Result 543 states and 883 transitions. [2022-03-21 00:14:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:16,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 94 [2022-03-21 00:14:16,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:16,820 INFO L225 Difference]: With dead ends: 543 [2022-03-21 00:14:16,820 INFO L226 Difference]: Without dead ends: 327 [2022-03-21 00:14:16,820 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 00:14:16,821 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 165 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:16,821 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 426 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 505 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-21 00:14:16,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-21 00:14:16,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 242. [2022-03-21 00:14:16,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.649789029535865) internal successors, (391), 237 states have internal predecessors, (391), 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 00:14:16,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 395 transitions. [2022-03-21 00:14:16,837 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 395 transitions. Word has length 94 [2022-03-21 00:14:16,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:16,837 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 395 transitions. [2022-03-21 00:14:16,837 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 395 transitions. [2022-03-21 00:14:16,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-21 00:14:16,840 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:16,840 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:14:16,841 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-21 00:14:16,841 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:16,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:16,841 INFO L85 PathProgramCache]: Analyzing trace with hash 197522711, now seen corresponding path program 1 times [2022-03-21 00:14:16,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:16,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1842650406] [2022-03-21 00:14:16,854 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:14:16,854 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:16,855 INFO L85 PathProgramCache]: Analyzing trace with hash 197522711, now seen corresponding path program 2 times [2022-03-21 00:14:16,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:16,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666606957] [2022-03-21 00:14:16,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:16,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:17,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:17,063 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:14:17,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:17,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666606957] [2022-03-21 00:14:17,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666606957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:17,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:17,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:17,064 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:17,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1842650406] [2022-03-21 00:14:17,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1842650406] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:17,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:17,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:17,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889320228] [2022-03-21 00:14:17,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:17,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:17,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:17,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:17,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:17,066 INFO L87 Difference]: Start difference. First operand 242 states and 395 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:18,367 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:19,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:21,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:23,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:23,878 INFO L93 Difference]: Finished difference Result 474 states and 774 transitions. [2022-03-21 00:14:23,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:23,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 94 [2022-03-21 00:14:23,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:23,880 INFO L225 Difference]: With dead ends: 474 [2022-03-21 00:14:23,880 INFO L226 Difference]: Without dead ends: 258 [2022-03-21 00:14:23,881 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 00:14:23,882 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 26 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:23,882 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 539 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 378 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-21 00:14:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-21 00:14:23,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 242. [2022-03-21 00:14:23,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.6455696202531647) internal successors, (390), 237 states have internal predecessors, (390), 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 00:14:23,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 394 transitions. [2022-03-21 00:14:23,895 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 394 transitions. Word has length 94 [2022-03-21 00:14:23,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:23,896 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 394 transitions. [2022-03-21 00:14:23,896 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:23,896 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 394 transitions. [2022-03-21 00:14:23,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-21 00:14:23,898 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:23,898 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-03-21 00:14:23,898 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-21 00:14:23,898 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:23,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:23,898 INFO L85 PathProgramCache]: Analyzing trace with hash -430804402, now seen corresponding path program 1 times [2022-03-21 00:14:23,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:23,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [120554047] [2022-03-21 00:14:23,910 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:14:23,910 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:23,910 INFO L85 PathProgramCache]: Analyzing trace with hash -430804402, now seen corresponding path program 2 times [2022-03-21 00:14:23,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:23,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233347167] [2022-03-21 00:14:23,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:23,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:24,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:24,045 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:14:24,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:24,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233347167] [2022-03-21 00:14:24,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233347167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:24,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:24,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:24,046 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:24,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [120554047] [2022-03-21 00:14:24,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [120554047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:24,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:24,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:24,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943592384] [2022-03-21 00:14:24,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:24,047 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:24,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:24,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:24,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:24,048 INFO L87 Difference]: Start difference. First operand 242 states and 394 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:25,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:27,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:28,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:29,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:29,250 INFO L93 Difference]: Finished difference Result 472 states and 771 transitions. [2022-03-21 00:14:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:29,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 94 [2022-03-21 00:14:29,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:29,253 INFO L225 Difference]: With dead ends: 472 [2022-03-21 00:14:29,253 INFO L226 Difference]: Without dead ends: 256 [2022-03-21 00:14:29,254 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 00:14:29,254 INFO L913 BasicCegarLoop]: 208 mSDtfsCounter, 20 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:29,254 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 543 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-03-21 00:14:29,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-03-21 00:14:29,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 242. [2022-03-21 00:14:29,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.641350210970464) internal successors, (389), 237 states have internal predecessors, (389), 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 00:14:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 393 transitions. [2022-03-21 00:14:29,283 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 393 transitions. Word has length 94 [2022-03-21 00:14:29,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:29,284 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 393 transitions. [2022-03-21 00:14:29,284 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 393 transitions. [2022-03-21 00:14:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-21 00:14:29,285 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:29,285 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-03-21 00:14:29,285 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-21 00:14:29,285 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:29,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1807527119, now seen corresponding path program 1 times [2022-03-21 00:14:29,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:29,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [385031634] [2022-03-21 00:14:29,303 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:14:29,303 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:29,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1807527119, now seen corresponding path program 2 times [2022-03-21 00:14:29,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:29,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368642307] [2022-03-21 00:14:29,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:29,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:29,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:29,439 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:14:29,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:29,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368642307] [2022-03-21 00:14:29,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368642307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:29,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:29,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:29,440 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:29,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [385031634] [2022-03-21 00:14:29,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [385031634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:29,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:29,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:29,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388218020] [2022-03-21 00:14:29,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:29,441 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:29,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:29,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:29,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:29,442 INFO L87 Difference]: Start difference. First operand 242 states and 393 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:31,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:32,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:34,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:36,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:37,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:37,304 INFO L93 Difference]: Finished difference Result 471 states and 769 transitions. [2022-03-21 00:14:37,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:37,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 94 [2022-03-21 00:14:37,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:37,305 INFO L225 Difference]: With dead ends: 471 [2022-03-21 00:14:37,306 INFO L226 Difference]: Without dead ends: 255 [2022-03-21 00:14:37,306 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 00:14:37,307 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 18 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:37,307 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-03-21 00:14:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-21 00:14:37,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 242. [2022-03-21 00:14:37,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.6371308016877637) internal successors, (388), 237 states have internal predecessors, (388), 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 00:14:37,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 392 transitions. [2022-03-21 00:14:37,318 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 392 transitions. Word has length 94 [2022-03-21 00:14:37,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:37,318 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 392 transitions. [2022-03-21 00:14:37,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 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 00:14:37,319 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 392 transitions. [2022-03-21 00:14:37,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-21 00:14:37,320 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:37,320 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 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 00:14:37,320 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-21 00:14:37,320 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:37,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:37,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1400111428, now seen corresponding path program 1 times [2022-03-21 00:14:37,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:37,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1134900893] [2022-03-21 00:14:37,330 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:14:37,330 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:37,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1400111428, now seen corresponding path program 2 times [2022-03-21 00:14:37,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:37,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526354910] [2022-03-21 00:14:37,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:37,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:37,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:37,481 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:14:37,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:37,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526354910] [2022-03-21 00:14:37,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526354910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:37,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:37,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:37,482 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:37,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1134900893] [2022-03-21 00:14:37,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1134900893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:37,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:37,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:37,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123731717] [2022-03-21 00:14:37,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:37,483 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:37,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:37,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:37,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:37,484 INFO L87 Difference]: Start difference. First operand 242 states and 392 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 00:14:39,881 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:41,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:43,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:44,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:44,390 INFO L93 Difference]: Finished difference Result 471 states and 768 transitions. [2022-03-21 00:14:44,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:44,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 95 [2022-03-21 00:14:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:44,393 INFO L225 Difference]: With dead ends: 471 [2022-03-21 00:14:44,393 INFO L226 Difference]: Without dead ends: 255 [2022-03-21 00:14:44,393 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 00:14:44,394 INFO L913 BasicCegarLoop]: 209 mSDtfsCounter, 22 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:44,394 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 545 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-21 00:14:44,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-21 00:14:44,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 242. [2022-03-21 00:14:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.6329113924050633) internal successors, (387), 237 states have internal predecessors, (387), 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 00:14:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 391 transitions. [2022-03-21 00:14:44,406 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 391 transitions. Word has length 95 [2022-03-21 00:14:44,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:44,407 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 391 transitions. [2022-03-21 00:14:44,407 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 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 00:14:44,407 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 391 transitions. [2022-03-21 00:14:44,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-21 00:14:44,408 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:44,408 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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 00:14:44,408 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-21 00:14:44,409 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:44,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:44,409 INFO L85 PathProgramCache]: Analyzing trace with hash 680501820, now seen corresponding path program 1 times [2022-03-21 00:14:44,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:44,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1335632074] [2022-03-21 00:14:44,420 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:14:44,420 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:44,421 INFO L85 PathProgramCache]: Analyzing trace with hash 680501820, now seen corresponding path program 2 times [2022-03-21 00:14:44,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:44,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025699593] [2022-03-21 00:14:44,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:44,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:44,556 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:14:44,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:44,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025699593] [2022-03-21 00:14:44,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025699593] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:44,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:44,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:44,557 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:44,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1335632074] [2022-03-21 00:14:44,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1335632074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:44,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:44,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:44,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431672544] [2022-03-21 00:14:44,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:44,558 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:44,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:44,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:44,559 INFO L87 Difference]: Start difference. First operand 242 states and 391 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 00:14:46,569 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 00:14:47,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:47,139 INFO L93 Difference]: Finished difference Result 543 states and 874 transitions. [2022-03-21 00:14:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:47,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 96 [2022-03-21 00:14:47,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:47,141 INFO L225 Difference]: With dead ends: 543 [2022-03-21 00:14:47,141 INFO L226 Difference]: Without dead ends: 327 [2022-03-21 00:14:47,142 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 00:14:47,143 INFO L913 BasicCegarLoop]: 150 mSDtfsCounter, 161 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:47,143 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 426 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 503 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-03-21 00:14:47,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-03-21 00:14:47,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 242. [2022-03-21 00:14:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.620253164556962) internal successors, (384), 237 states have internal predecessors, (384), 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 00:14:47,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 388 transitions. [2022-03-21 00:14:47,155 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 388 transitions. Word has length 96 [2022-03-21 00:14:47,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:47,155 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 388 transitions. [2022-03-21 00:14:47,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 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 00:14:47,155 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 388 transitions. [2022-03-21 00:14:47,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-21 00:14:47,156 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:47,157 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-03-21 00:14:47,157 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-21 00:14:47,157 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:47,157 INFO L85 PathProgramCache]: Analyzing trace with hash 822667073, now seen corresponding path program 1 times [2022-03-21 00:14:47,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:47,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1971366237] [2022-03-21 00:14:47,166 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:14:47,167 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:47,167 INFO L85 PathProgramCache]: Analyzing trace with hash 822667073, now seen corresponding path program 2 times [2022-03-21 00:14:47,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:47,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817435383] [2022-03-21 00:14:47,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:47,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:14:47,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:47,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817435383] [2022-03-21 00:14:47,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817435383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:47,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:47,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:47,309 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:47,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1971366237] [2022-03-21 00:14:47,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1971366237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:47,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:47,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:47,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802912311] [2022-03-21 00:14:47,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:47,309 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:47,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:47,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:47,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:47,311 INFO L87 Difference]: Start difference. First operand 242 states and 388 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 00:14:48,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:50,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:52,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:53,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:14:53,325 INFO L93 Difference]: Finished difference Result 461 states and 749 transitions. [2022-03-21 00:14:53,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:14:53,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 97 [2022-03-21 00:14:53,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:14:53,327 INFO L225 Difference]: With dead ends: 461 [2022-03-21 00:14:53,327 INFO L226 Difference]: Without dead ends: 245 [2022-03-21 00:14:53,328 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 00:14:53,329 INFO L913 BasicCegarLoop]: 216 mSDtfsCounter, 11 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:14:53,329 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 559 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 358 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-21 00:14:53,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-03-21 00:14:53,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 242. [2022-03-21 00:14:53,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 237 states have (on average 1.6160337552742616) internal successors, (383), 237 states have internal predecessors, (383), 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 00:14:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 387 transitions. [2022-03-21 00:14:53,338 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 387 transitions. Word has length 97 [2022-03-21 00:14:53,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:14:53,339 INFO L478 AbstractCegarLoop]: Abstraction has 242 states and 387 transitions. [2022-03-21 00:14:53,339 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 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 00:14:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 387 transitions. [2022-03-21 00:14:53,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-21 00:14:53,340 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:14:53,340 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 00:14:53,340 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-21 00:14:53,340 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:14:53,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:14:53,341 INFO L85 PathProgramCache]: Analyzing trace with hash -499583574, now seen corresponding path program 1 times [2022-03-21 00:14:53,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:53,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [121635115] [2022-03-21 00:14:53,349 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:14:53,349 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:14:53,349 INFO L85 PathProgramCache]: Analyzing trace with hash -499583574, now seen corresponding path program 2 times [2022-03-21 00:14:53,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:14:53,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30830671] [2022-03-21 00:14:53,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:14:53,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:14:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:53,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:14:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:14:53,462 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-21 00:14:53,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:14:53,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30830671] [2022-03-21 00:14:53,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30830671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:53,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:53,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:53,463 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:14:53,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [121635115] [2022-03-21 00:14:53,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [121635115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:14:53,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:14:53,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:14:53,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398228992] [2022-03-21 00:14:53,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:14:53,464 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:14:53,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:14:53,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:14:53,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:14:53,464 INFO L87 Difference]: Start difference. First operand 242 states and 387 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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 00:14:54,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:14:57,718 WARN L534 Checker$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 00:14:59,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:00,107 INFO L93 Difference]: Finished difference Result 619 states and 1006 transitions. [2022-03-21 00:15:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:00,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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 97 [2022-03-21 00:15:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:00,110 INFO L225 Difference]: With dead ends: 619 [2022-03-21 00:15:00,110 INFO L226 Difference]: Without dead ends: 403 [2022-03-21 00:15:00,111 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 00:15:00,111 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 142 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:00,111 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 410 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-03-21 00:15:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-03-21 00:15:00,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 306. [2022-03-21 00:15:00,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 301 states have (on average 1.6445182724252492) internal successors, (495), 301 states have internal predecessors, (495), 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 00:15:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 499 transitions. [2022-03-21 00:15:00,126 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 499 transitions. Word has length 97 [2022-03-21 00:15:00,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:00,126 INFO L478 AbstractCegarLoop]: Abstraction has 306 states and 499 transitions. [2022-03-21 00:15:00,126 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 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 00:15:00,127 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 499 transitions. [2022-03-21 00:15:00,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-21 00:15:00,128 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:00,128 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 00:15:00,128 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-21 00:15:00,128 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:00,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:00,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1310599712, now seen corresponding path program 1 times [2022-03-21 00:15:00,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:00,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [885500217] [2022-03-21 00:15:00,139 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:00,140 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:00,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1310599712, now seen corresponding path program 2 times [2022-03-21 00:15:00,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:00,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684253221] [2022-03-21 00:15:00,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:00,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-21 00:15:00,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:00,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684253221] [2022-03-21 00:15:00,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684253221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:00,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:00,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:00,267 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:00,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [885500217] [2022-03-21 00:15:00,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [885500217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:00,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:00,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:00,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148716838] [2022-03-21 00:15:00,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:00,268 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:00,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:00,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:00,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:00,269 INFO L87 Difference]: Start difference. First operand 306 states and 499 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 00:15:01,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:02,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:04,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:05,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:06,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:06,439 INFO L93 Difference]: Finished difference Result 628 states and 1031 transitions. [2022-03-21 00:15:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:06,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 103 [2022-03-21 00:15:06,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:06,441 INFO L225 Difference]: With dead ends: 628 [2022-03-21 00:15:06,441 INFO L226 Difference]: Without dead ends: 348 [2022-03-21 00:15:06,442 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 00:15:06,443 INFO L913 BasicCegarLoop]: 213 mSDtfsCounter, 32 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:06,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 559 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-03-21 00:15:06,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-03-21 00:15:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 328. [2022-03-21 00:15:06,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 323 states have (on average 1.6439628482972137) internal successors, (531), 323 states have internal predecessors, (531), 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 00:15:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 535 transitions. [2022-03-21 00:15:06,458 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 535 transitions. Word has length 103 [2022-03-21 00:15:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:06,458 INFO L478 AbstractCegarLoop]: Abstraction has 328 states and 535 transitions. [2022-03-21 00:15:06,458 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 00:15:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 535 transitions. [2022-03-21 00:15:06,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-21 00:15:06,459 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:06,459 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-21 00:15:06,460 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-21 00:15:06,460 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:06,460 INFO L85 PathProgramCache]: Analyzing trace with hash 953723551, now seen corresponding path program 1 times [2022-03-21 00:15:06,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:06,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [751568680] [2022-03-21 00:15:06,472 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:06,472 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:06,472 INFO L85 PathProgramCache]: Analyzing trace with hash 953723551, now seen corresponding path program 2 times [2022-03-21 00:15:06,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:06,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793341919] [2022-03-21 00:15:06,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:06,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:06,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:06,610 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:15:06,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:06,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793341919] [2022-03-21 00:15:06,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793341919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:06,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:06,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:06,610 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:06,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [751568680] [2022-03-21 00:15:06,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [751568680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:06,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:06,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:06,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770751994] [2022-03-21 00:15:06,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:06,611 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:06,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:06,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:06,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:06,613 INFO L87 Difference]: Start difference. First operand 328 states and 535 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 00:15:09,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:11,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:11,670 INFO L93 Difference]: Finished difference Result 755 states and 1234 transitions. [2022-03-21 00:15:11,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:11,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 110 [2022-03-21 00:15:11,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:11,672 INFO L225 Difference]: With dead ends: 755 [2022-03-21 00:15:11,673 INFO L226 Difference]: Without dead ends: 453 [2022-03-21 00:15:11,673 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 00:15:11,674 INFO L913 BasicCegarLoop]: 265 mSDtfsCounter, 159 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:11,674 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 656 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 623 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-21 00:15:11,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-03-21 00:15:11,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 344. [2022-03-21 00:15:11,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.6253687315634218) internal successors, (551), 339 states have internal predecessors, (551), 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 00:15:11,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 555 transitions. [2022-03-21 00:15:11,690 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 555 transitions. Word has length 110 [2022-03-21 00:15:11,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:11,690 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 555 transitions. [2022-03-21 00:15:11,691 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 00:15:11,691 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 555 transitions. [2022-03-21 00:15:11,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-21 00:15:11,692 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:11,692 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-03-21 00:15:11,692 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-21 00:15:11,692 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:11,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash 967075586, now seen corresponding path program 1 times [2022-03-21 00:15:11,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:11,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [715276894] [2022-03-21 00:15:11,704 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:11,705 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:11,705 INFO L85 PathProgramCache]: Analyzing trace with hash 967075586, now seen corresponding path program 2 times [2022-03-21 00:15:11,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:11,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170890388] [2022-03-21 00:15:11,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:11,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:11,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-21 00:15:11,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:11,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170890388] [2022-03-21 00:15:11,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170890388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:11,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:11,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:11,856 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:11,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [715276894] [2022-03-21 00:15:11,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [715276894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:11,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:11,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:11,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523416802] [2022-03-21 00:15:11,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:11,857 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:11,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:11,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:11,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:11,858 INFO L87 Difference]: Start difference. First operand 344 states and 555 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 00:15:14,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:16,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:17,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:17,240 INFO L93 Difference]: Finished difference Result 747 states and 1204 transitions. [2022-03-21 00:15:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:17,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 111 [2022-03-21 00:15:17,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:17,243 INFO L225 Difference]: With dead ends: 747 [2022-03-21 00:15:17,243 INFO L226 Difference]: Without dead ends: 429 [2022-03-21 00:15:17,244 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 00:15:17,244 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 158 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:17,244 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 398 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-21 00:15:17,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-03-21 00:15:17,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 344. [2022-03-21 00:15:17,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.6106194690265487) internal successors, (546), 339 states have internal predecessors, (546), 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 00:15:17,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 550 transitions. [2022-03-21 00:15:17,264 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 550 transitions. Word has length 111 [2022-03-21 00:15:17,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:17,264 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 550 transitions. [2022-03-21 00:15:17,264 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 00:15:17,264 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 550 transitions. [2022-03-21 00:15:17,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-21 00:15:17,266 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:17,266 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-03-21 00:15:17,266 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-21 00:15:17,266 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:17,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:17,267 INFO L85 PathProgramCache]: Analyzing trace with hash -764973759, now seen corresponding path program 1 times [2022-03-21 00:15:17,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:17,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1491880238] [2022-03-21 00:15:17,281 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:17,282 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:17,282 INFO L85 PathProgramCache]: Analyzing trace with hash -764973759, now seen corresponding path program 2 times [2022-03-21 00:15:17,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:17,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128616887] [2022-03-21 00:15:17,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:17,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:17,430 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-21 00:15:17,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:17,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128616887] [2022-03-21 00:15:17,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128616887] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:17,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:17,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:17,432 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:17,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1491880238] [2022-03-21 00:15:17,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1491880238] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:17,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:17,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:17,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837450445] [2022-03-21 00:15:17,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:17,433 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:17,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:17,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:17,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:17,434 INFO L87 Difference]: Start difference. First operand 344 states and 550 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 00:15:19,863 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 00:15:21,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:23,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:23,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:23,447 INFO L93 Difference]: Finished difference Result 674 states and 1085 transitions. [2022-03-21 00:15:23,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:23,448 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 117 [2022-03-21 00:15:23,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:23,450 INFO L225 Difference]: With dead ends: 674 [2022-03-21 00:15:23,450 INFO L226 Difference]: Without dead ends: 356 [2022-03-21 00:15:23,451 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 00:15:23,451 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 20 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:23,451 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 624 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 410 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-21 00:15:23,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-03-21 00:15:23,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 344. [2022-03-21 00:15:23,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.607669616519174) internal successors, (545), 339 states have internal predecessors, (545), 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 00:15:23,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 549 transitions. [2022-03-21 00:15:23,467 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 549 transitions. Word has length 117 [2022-03-21 00:15:23,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:23,468 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 549 transitions. [2022-03-21 00:15:23,468 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 00:15:23,468 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 549 transitions. [2022-03-21 00:15:23,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-21 00:15:23,469 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:23,469 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-03-21 00:15:23,469 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-21 00:15:23,469 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:23,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:23,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2075359993, now seen corresponding path program 1 times [2022-03-21 00:15:23,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:23,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2135648888] [2022-03-21 00:15:23,482 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:23,482 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:23,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2075359993, now seen corresponding path program 2 times [2022-03-21 00:15:23,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:23,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477495139] [2022-03-21 00:15:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:23,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:23,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:23,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:23,598 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-21 00:15:23,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:23,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477495139] [2022-03-21 00:15:23,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477495139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:23,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:23,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:23,598 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:23,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2135648888] [2022-03-21 00:15:23,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2135648888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:23,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:23,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:23,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474496066] [2022-03-21 00:15:23,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:23,599 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:23,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:23,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:23,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:23,600 INFO L87 Difference]: Start difference. First operand 344 states and 549 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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 00:15:25,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:27,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:28,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:29,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:29,214 INFO L93 Difference]: Finished difference Result 746 states and 1191 transitions. [2022-03-21 00:15:29,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:29,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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 117 [2022-03-21 00:15:29,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:29,216 INFO L225 Difference]: With dead ends: 746 [2022-03-21 00:15:29,216 INFO L226 Difference]: Without dead ends: 428 [2022-03-21 00:15:29,217 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 00:15:29,217 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 156 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:29,218 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 400 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-03-21 00:15:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-21 00:15:29,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 344. [2022-03-21 00:15:29,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.592920353982301) internal successors, (540), 339 states have internal predecessors, (540), 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 00:15:29,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 544 transitions. [2022-03-21 00:15:29,237 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 544 transitions. Word has length 117 [2022-03-21 00:15:29,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:29,237 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 544 transitions. [2022-03-21 00:15:29,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 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 00:15:29,237 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 544 transitions. [2022-03-21 00:15:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-21 00:15:29,238 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:29,238 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-03-21 00:15:29,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-21 00:15:29,239 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash -501273454, now seen corresponding path program 1 times [2022-03-21 00:15:29,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:29,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [77378436] [2022-03-21 00:15:29,258 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:29,258 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:29,258 INFO L85 PathProgramCache]: Analyzing trace with hash -501273454, now seen corresponding path program 2 times [2022-03-21 00:15:29,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:29,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611120771] [2022-03-21 00:15:29,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:29,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-21 00:15:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:29,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611120771] [2022-03-21 00:15:29,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611120771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:29,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:29,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:29,376 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:29,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [77378436] [2022-03-21 00:15:29,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [77378436] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:29,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:29,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:29,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556939035] [2022-03-21 00:15:29,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:29,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:29,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:29,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:29,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:29,378 INFO L87 Difference]: Start difference. First operand 344 states and 544 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 00:15:32,307 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 00:15:34,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:36,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:36,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:36,836 INFO L93 Difference]: Finished difference Result 746 states and 1181 transitions. [2022-03-21 00:15:36,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:36,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 00:15:36,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:36,838 INFO L225 Difference]: With dead ends: 746 [2022-03-21 00:15:36,838 INFO L226 Difference]: Without dead ends: 428 [2022-03-21 00:15:36,839 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 00:15:36,840 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 161 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 62 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:36,840 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 400 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 488 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-21 00:15:36,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-03-21 00:15:36,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 344. [2022-03-21 00:15:36,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.575221238938053) internal successors, (534), 339 states have internal predecessors, (534), 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 00:15:36,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 538 transitions. [2022-03-21 00:15:36,875 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 538 transitions. Word has length 118 [2022-03-21 00:15:36,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:36,875 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 538 transitions. [2022-03-21 00:15:36,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 00:15:36,875 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 538 transitions. [2022-03-21 00:15:36,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-21 00:15:36,877 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:36,877 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-03-21 00:15:36,877 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-21 00:15:36,877 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:36,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:36,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1729898699, now seen corresponding path program 1 times [2022-03-21 00:15:36,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:36,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1148911628] [2022-03-21 00:15:36,894 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:36,894 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:36,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1729898699, now seen corresponding path program 2 times [2022-03-21 00:15:36,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:36,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881936009] [2022-03-21 00:15:36,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:36,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:36,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:37,003 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-21 00:15:37,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:37,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881936009] [2022-03-21 00:15:37,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881936009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:37,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:37,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:37,003 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:37,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1148911628] [2022-03-21 00:15:37,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1148911628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:37,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:37,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:37,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498783562] [2022-03-21 00:15:37,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:37,004 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:37,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:37,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:37,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:37,005 INFO L87 Difference]: Start difference. First operand 344 states and 538 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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 00:15:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:40,501 INFO L93 Difference]: Finished difference Result 679 states and 1069 transitions. [2022-03-21 00:15:40,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:40,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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 119 [2022-03-21 00:15:40,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:40,508 INFO L225 Difference]: With dead ends: 679 [2022-03-21 00:15:40,508 INFO L226 Difference]: Without dead ends: 361 [2022-03-21 00:15:40,509 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 00:15:40,509 INFO L913 BasicCegarLoop]: 217 mSDtfsCounter, 36 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:40,509 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 565 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-21 00:15:40,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-03-21 00:15:40,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 344. [2022-03-21 00:15:40,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.5722713864306785) internal successors, (533), 339 states have internal predecessors, (533), 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 00:15:40,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 537 transitions. [2022-03-21 00:15:40,528 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 537 transitions. Word has length 119 [2022-03-21 00:15:40,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:40,528 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 537 transitions. [2022-03-21 00:15:40,528 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 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 00:15:40,528 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 537 transitions. [2022-03-21 00:15:40,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-03-21 00:15:40,529 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:40,530 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-03-21 00:15:40,530 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-21 00:15:40,530 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:40,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:40,530 INFO L85 PathProgramCache]: Analyzing trace with hash 982573584, now seen corresponding path program 1 times [2022-03-21 00:15:40,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:40,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [745859673] [2022-03-21 00:15:40,547 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:40,548 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:40,548 INFO L85 PathProgramCache]: Analyzing trace with hash 982573584, now seen corresponding path program 2 times [2022-03-21 00:15:40,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:40,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873012239] [2022-03-21 00:15:40,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:40,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:40,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:40,705 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-21 00:15:40,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:40,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873012239] [2022-03-21 00:15:40,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873012239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:40,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:40,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:40,705 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:40,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [745859673] [2022-03-21 00:15:40,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [745859673] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:40,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:40,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:40,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025406282] [2022-03-21 00:15:40,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:40,706 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:40,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:40,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:40,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:40,707 INFO L87 Difference]: Start difference. First operand 344 states and 537 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 00:15:42,724 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 00:15:43,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:43,075 INFO L93 Difference]: Finished difference Result 669 states and 1054 transitions. [2022-03-21 00:15:43,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:43,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 121 [2022-03-21 00:15:43,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:43,077 INFO L225 Difference]: With dead ends: 669 [2022-03-21 00:15:43,077 INFO L226 Difference]: Without dead ends: 351 [2022-03-21 00:15:43,078 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 00:15:43,078 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 26 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:43,078 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 579 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:15:43,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-03-21 00:15:43,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 344. [2022-03-21 00:15:43,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 339 states have (on average 1.5693215339233038) internal successors, (532), 339 states have internal predecessors, (532), 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 00:15:43,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 536 transitions. [2022-03-21 00:15:43,097 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 536 transitions. Word has length 121 [2022-03-21 00:15:43,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:43,097 INFO L478 AbstractCegarLoop]: Abstraction has 344 states and 536 transitions. [2022-03-21 00:15:43,097 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 00:15:43,097 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 536 transitions. [2022-03-21 00:15:43,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-21 00:15:43,099 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:43,099 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-03-21 00:15:43,099 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-21 00:15:43,099 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:43,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:43,099 INFO L85 PathProgramCache]: Analyzing trace with hash -532919832, now seen corresponding path program 1 times [2022-03-21 00:15:43,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:43,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1202898529] [2022-03-21 00:15:43,115 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:43,115 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:43,115 INFO L85 PathProgramCache]: Analyzing trace with hash -532919832, now seen corresponding path program 2 times [2022-03-21 00:15:43,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:43,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431683719] [2022-03-21 00:15:43,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:43,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:43,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-21 00:15:43,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:43,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431683719] [2022-03-21 00:15:43,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431683719] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:43,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:43,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:43,276 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:43,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1202898529] [2022-03-21 00:15:43,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1202898529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:43,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:43,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:43,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887974844] [2022-03-21 00:15:43,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:43,277 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:43,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:43,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:43,278 INFO L87 Difference]: Start difference. First operand 344 states and 536 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 00:15:45,563 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 00:15:47,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:48,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:48,362 INFO L93 Difference]: Finished difference Result 786 states and 1231 transitions. [2022-03-21 00:15:48,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:48,362 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 125 [2022-03-21 00:15:48,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:48,364 INFO L225 Difference]: With dead ends: 786 [2022-03-21 00:15:48,364 INFO L226 Difference]: Without dead ends: 468 [2022-03-21 00:15:48,365 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 00:15:48,366 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 135 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:48,366 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 400 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-03-21 00:15:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2022-03-21 00:15:48,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 381. [2022-03-21 00:15:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 376 states have (on average 1.574468085106383) internal successors, (592), 376 states have internal predecessors, (592), 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 00:15:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 596 transitions. [2022-03-21 00:15:48,388 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 596 transitions. Word has length 125 [2022-03-21 00:15:48,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:48,389 INFO L478 AbstractCegarLoop]: Abstraction has 381 states and 596 transitions. [2022-03-21 00:15:48,389 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 00:15:48,389 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 596 transitions. [2022-03-21 00:15:48,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-21 00:15:48,390 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:48,390 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-03-21 00:15:48,390 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-21 00:15:48,391 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:48,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:48,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1088367856, now seen corresponding path program 1 times [2022-03-21 00:15:48,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:48,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [901859961] [2022-03-21 00:15:48,406 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:48,406 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1088367856, now seen corresponding path program 2 times [2022-03-21 00:15:48,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:48,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349139709] [2022-03-21 00:15:48,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:48,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:48,537 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-21 00:15:48,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:48,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349139709] [2022-03-21 00:15:48,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349139709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:48,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:48,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:48,538 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:48,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [901859961] [2022-03-21 00:15:48,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [901859961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:48,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:48,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:48,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801511771] [2022-03-21 00:15:48,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:48,539 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:48,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:48,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:48,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:48,539 INFO L87 Difference]: Start difference. First operand 381 states and 596 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 00:15:49,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:50,975 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:52,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:54,655 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:55,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:15:55,085 INFO L93 Difference]: Finished difference Result 831 states and 1306 transitions. [2022-03-21 00:15:55,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:15:55,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 126 [2022-03-21 00:15:55,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:15:55,091 INFO L225 Difference]: With dead ends: 831 [2022-03-21 00:15:55,091 INFO L226 Difference]: Without dead ends: 476 [2022-03-21 00:15:55,092 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 00:15:55,093 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 85 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:15:55,093 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 531 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-03-21 00:15:55,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-03-21 00:15:55,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 421. [2022-03-21 00:15:55,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 416 states have (on average 1.5769230769230769) internal successors, (656), 416 states have internal predecessors, (656), 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 00:15:55,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 660 transitions. [2022-03-21 00:15:55,118 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 660 transitions. Word has length 126 [2022-03-21 00:15:55,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:15:55,119 INFO L478 AbstractCegarLoop]: Abstraction has 421 states and 660 transitions. [2022-03-21 00:15:55,119 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 00:15:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 660 transitions. [2022-03-21 00:15:55,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-03-21 00:15:55,120 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:15:55,120 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-03-21 00:15:55,120 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-21 00:15:55,120 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:15:55,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:15:55,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1927401518, now seen corresponding path program 1 times [2022-03-21 00:15:55,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:55,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2046171467] [2022-03-21 00:15:55,135 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:15:55,135 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:15:55,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1927401518, now seen corresponding path program 2 times [2022-03-21 00:15:55,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:15:55,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313530386] [2022-03-21 00:15:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:15:55,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:15:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:55,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:15:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:15:55,270 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-21 00:15:55,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:15:55,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313530386] [2022-03-21 00:15:55,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313530386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:55,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:55,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:55,272 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:15:55,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2046171467] [2022-03-21 00:15:55,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2046171467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:15:55,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:15:55,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:15:55,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351763661] [2022-03-21 00:15:55,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:15:55,273 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:15:55,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:15:55,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:15:55,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:15:55,273 INFO L87 Difference]: Start difference. First operand 421 states and 660 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 00:15:56,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:15:58,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:01,433 WARN L534 Checker$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 00:16:01,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:01,848 INFO L93 Difference]: Finished difference Result 862 states and 1357 transitions. [2022-03-21 00:16:01,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:01,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 126 [2022-03-21 00:16:01,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:01,850 INFO L225 Difference]: With dead ends: 862 [2022-03-21 00:16:01,850 INFO L226 Difference]: Without dead ends: 467 [2022-03-21 00:16:01,852 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 00:16:01,852 INFO L913 BasicCegarLoop]: 263 mSDtfsCounter, 36 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:01,852 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 657 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 474 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-21 00:16:01,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-21 00:16:01,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 445. [2022-03-21 00:16:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 440 states have (on average 1.5727272727272728) internal successors, (692), 440 states have internal predecessors, (692), 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 00:16:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 696 transitions. [2022-03-21 00:16:01,880 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 696 transitions. Word has length 126 [2022-03-21 00:16:01,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:01,881 INFO L478 AbstractCegarLoop]: Abstraction has 445 states and 696 transitions. [2022-03-21 00:16:01,881 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 00:16:01,881 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 696 transitions. [2022-03-21 00:16:01,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-21 00:16:01,882 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:01,882 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-03-21 00:16:01,882 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-21 00:16:01,882 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:01,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:01,883 INFO L85 PathProgramCache]: Analyzing trace with hash 706398648, now seen corresponding path program 1 times [2022-03-21 00:16:01,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:01,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [341264328] [2022-03-21 00:16:01,900 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:01,900 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:01,900 INFO L85 PathProgramCache]: Analyzing trace with hash 706398648, now seen corresponding path program 2 times [2022-03-21 00:16:01,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:01,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363549052] [2022-03-21 00:16:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:01,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:01,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:02,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:02,042 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-21 00:16:02,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:02,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363549052] [2022-03-21 00:16:02,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363549052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:02,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:02,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:02,043 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:02,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [341264328] [2022-03-21 00:16:02,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [341264328] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:02,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:02,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:02,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194295741] [2022-03-21 00:16:02,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:02,044 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:16:02,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:02,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:16:02,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:16:02,044 INFO L87 Difference]: Start difference. First operand 445 states and 696 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 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 00:16:03,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:05,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:07,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:09,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:09,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:09,602 INFO L93 Difference]: Finished difference Result 988 states and 1550 transitions. [2022-03-21 00:16:09,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:09,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 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 133 [2022-03-21 00:16:09,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:09,604 INFO L225 Difference]: With dead ends: 988 [2022-03-21 00:16:09,605 INFO L226 Difference]: Without dead ends: 569 [2022-03-21 00:16:09,606 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 00:16:09,606 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 128 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 60 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:09,607 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 401 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-21 00:16:09,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-03-21 00:16:09,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 488. [2022-03-21 00:16:09,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 483 states have (on average 1.5776397515527951) internal successors, (762), 483 states have internal predecessors, (762), 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 00:16:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 766 transitions. [2022-03-21 00:16:09,639 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 766 transitions. Word has length 133 [2022-03-21 00:16:09,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:09,639 INFO L478 AbstractCegarLoop]: Abstraction has 488 states and 766 transitions. [2022-03-21 00:16:09,639 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 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 00:16:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 766 transitions. [2022-03-21 00:16:09,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-03-21 00:16:09,641 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:09,641 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2022-03-21 00:16:09,641 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-21 00:16:09,641 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:09,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:09,642 INFO L85 PathProgramCache]: Analyzing trace with hash 749971168, now seen corresponding path program 1 times [2022-03-21 00:16:09,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:09,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1502339839] [2022-03-21 00:16:09,664 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:09,664 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash 749971168, now seen corresponding path program 2 times [2022-03-21 00:16:09,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:09,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212003666] [2022-03-21 00:16:09,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:09,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:09,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:09,822 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-21 00:16:09,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:09,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212003666] [2022-03-21 00:16:09,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212003666] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:09,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:09,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:09,823 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:09,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1502339839] [2022-03-21 00:16:09,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1502339839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:09,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:09,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:09,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736038275] [2022-03-21 00:16:09,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:09,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:16:09,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:09,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:16:09,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:16:09,824 INFO L87 Difference]: Start difference. First operand 488 states and 766 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 00:16:11,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:14,141 WARN L534 Checker$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 00:16:15,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:15,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:15,848 INFO L93 Difference]: Finished difference Result 1034 states and 1625 transitions. [2022-03-21 00:16:15,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:15,848 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 134 [2022-03-21 00:16:15,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:15,850 INFO L225 Difference]: With dead ends: 1034 [2022-03-21 00:16:15,850 INFO L226 Difference]: Without dead ends: 570 [2022-03-21 00:16:15,852 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 00:16:15,852 INFO L913 BasicCegarLoop]: 137 mSDtfsCounter, 129 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:15,853 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 400 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 490 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-03-21 00:16:15,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-03-21 00:16:15,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 490. [2022-03-21 00:16:15,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.577319587628866) internal successors, (765), 485 states have internal predecessors, (765), 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 00:16:15,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 769 transitions. [2022-03-21 00:16:15,886 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 769 transitions. Word has length 134 [2022-03-21 00:16:15,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:15,887 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 769 transitions. [2022-03-21 00:16:15,887 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 00:16:15,887 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 769 transitions. [2022-03-21 00:16:15,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-03-21 00:16:15,888 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:15,888 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-03-21 00:16:15,889 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-21 00:16:15,889 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:15,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:15,889 INFO L85 PathProgramCache]: Analyzing trace with hash -317430213, now seen corresponding path program 1 times [2022-03-21 00:16:15,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:15,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [653472357] [2022-03-21 00:16:15,909 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:15,910 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash -317430213, now seen corresponding path program 2 times [2022-03-21 00:16:15,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:15,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848589145] [2022-03-21 00:16:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:15,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-21 00:16:16,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:16,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848589145] [2022-03-21 00:16:16,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848589145] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:16,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:16,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:16,097 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:16,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [653472357] [2022-03-21 00:16:16,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [653472357] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:16,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:16,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:16,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502869686] [2022-03-21 00:16:16,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:16,098 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:16:16,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:16,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:16:16,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:16:16,099 INFO L87 Difference]: Start difference. First operand 490 states and 769 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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 00:16:18,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:19,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:20,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:20,684 INFO L93 Difference]: Finished difference Result 1034 states and 1624 transitions. [2022-03-21 00:16:20,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:20,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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 142 [2022-03-21 00:16:20,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:20,686 INFO L225 Difference]: With dead ends: 1034 [2022-03-21 00:16:20,686 INFO L226 Difference]: Without dead ends: 570 [2022-03-21 00:16:20,687 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 00:16:20,688 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 157 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:20,688 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 402 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-21 00:16:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2022-03-21 00:16:20,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 490. [2022-03-21 00:16:20,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.5587628865979382) internal successors, (756), 485 states have internal predecessors, (756), 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 00:16:20,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 760 transitions. [2022-03-21 00:16:20,723 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 760 transitions. Word has length 142 [2022-03-21 00:16:20,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:20,723 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 760 transitions. [2022-03-21 00:16:20,724 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 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 00:16:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 760 transitions. [2022-03-21 00:16:20,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-21 00:16:20,725 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:20,725 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2022-03-21 00:16:20,725 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-21 00:16:20,725 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:20,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:20,726 INFO L85 PathProgramCache]: Analyzing trace with hash 850745536, now seen corresponding path program 1 times [2022-03-21 00:16:20,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:20,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [838131577] [2022-03-21 00:16:20,746 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:20,746 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:20,746 INFO L85 PathProgramCache]: Analyzing trace with hash 850745536, now seen corresponding path program 2 times [2022-03-21 00:16:20,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:20,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755367708] [2022-03-21 00:16:20,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:20,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:20,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:20,892 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-21 00:16:20,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:20,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755367708] [2022-03-21 00:16:20,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755367708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:20,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:20,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:20,893 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:20,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [838131577] [2022-03-21 00:16:20,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [838131577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:20,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:20,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:20,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345013043] [2022-03-21 00:16:20,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:20,894 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:16:20,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:20,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:16:20,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:16:20,894 INFO L87 Difference]: Start difference. First operand 490 states and 760 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 00:16:23,424 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 00:16:25,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:27,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:27,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:27,966 INFO L93 Difference]: Finished difference Result 1024 states and 1593 transitions. [2022-03-21 00:16:27,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:27,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 144 [2022-03-21 00:16:27,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:27,968 INFO L225 Difference]: With dead ends: 1024 [2022-03-21 00:16:27,968 INFO L226 Difference]: Without dead ends: 560 [2022-03-21 00:16:27,970 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 00:16:27,970 INFO L913 BasicCegarLoop]: 162 mSDtfsCounter, 147 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:27,970 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 450 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 489 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-03-21 00:16:27,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-03-21 00:16:28,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 490. [2022-03-21 00:16:28,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 485 states have (on average 1.5402061855670104) internal successors, (747), 485 states have internal predecessors, (747), 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 00:16:28,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 751 transitions. [2022-03-21 00:16:28,007 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 751 transitions. Word has length 144 [2022-03-21 00:16:28,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:28,008 INFO L478 AbstractCegarLoop]: Abstraction has 490 states and 751 transitions. [2022-03-21 00:16:28,008 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 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 00:16:28,008 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 751 transitions. [2022-03-21 00:16:28,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-21 00:16:28,009 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:28,009 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-03-21 00:16:28,010 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-21 00:16:28,010 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:28,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:28,010 INFO L85 PathProgramCache]: Analyzing trace with hash -28401772, now seen corresponding path program 1 times [2022-03-21 00:16:28,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:28,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [64098853] [2022-03-21 00:16:28,038 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:28,038 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:28,038 INFO L85 PathProgramCache]: Analyzing trace with hash -28401772, now seen corresponding path program 2 times [2022-03-21 00:16:28,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:28,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726934924] [2022-03-21 00:16:28,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:28,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:28,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:28,167 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-21 00:16:28,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:28,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726934924] [2022-03-21 00:16:28,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726934924] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:28,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:28,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:28,168 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:28,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [64098853] [2022-03-21 00:16:28,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [64098853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:28,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:28,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:28,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813209601] [2022-03-21 00:16:28,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:28,169 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:16:28,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:28,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:16:28,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:16:28,169 INFO L87 Difference]: Start difference. First operand 490 states and 751 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 00:16:29,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:31,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:33,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:34,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:34,083 INFO L93 Difference]: Finished difference Result 1066 states and 1641 transitions. [2022-03-21 00:16:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:34,084 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 146 [2022-03-21 00:16:34,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:34,086 INFO L225 Difference]: With dead ends: 1066 [2022-03-21 00:16:34,086 INFO L226 Difference]: Without dead ends: 602 [2022-03-21 00:16:34,087 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 00:16:34,088 INFO L913 BasicCegarLoop]: 162 mSDtfsCounter, 131 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:34,088 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 450 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-21 00:16:34,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-03-21 00:16:34,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 520. [2022-03-21 00:16:34,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 515 states have (on average 1.5281553398058252) internal successors, (787), 515 states have internal predecessors, (787), 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 00:16:34,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 791 transitions. [2022-03-21 00:16:34,143 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 791 transitions. Word has length 146 [2022-03-21 00:16:34,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:34,143 INFO L478 AbstractCegarLoop]: Abstraction has 520 states and 791 transitions. [2022-03-21 00:16:34,143 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 00:16:34,144 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 791 transitions. [2022-03-21 00:16:34,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-21 00:16:34,145 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:34,145 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 00:16:34,145 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-21 00:16:34,145 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:34,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:34,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1277749095, now seen corresponding path program 1 times [2022-03-21 00:16:34,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:34,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1403920915] [2022-03-21 00:16:34,163 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:34,164 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:34,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1277749095, now seen corresponding path program 2 times [2022-03-21 00:16:34,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:34,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755605956] [2022-03-21 00:16:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:34,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:34,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-21 00:16:34,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:34,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755605956] [2022-03-21 00:16:34,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755605956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:34,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:34,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:34,318 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:34,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1403920915] [2022-03-21 00:16:34,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1403920915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:34,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:34,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:34,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539672074] [2022-03-21 00:16:34,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:34,320 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:16:34,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:34,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:16:34,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:16:34,321 INFO L87 Difference]: Start difference. First operand 520 states and 791 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 00:16:36,336 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 00:16:36,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:36,790 INFO L93 Difference]: Finished difference Result 1050 states and 1604 transitions. [2022-03-21 00:16:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:36,790 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 147 [2022-03-21 00:16:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:36,792 INFO L225 Difference]: With dead ends: 1050 [2022-03-21 00:16:36,792 INFO L226 Difference]: Without dead ends: 556 [2022-03-21 00:16:36,793 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 00:16:36,794 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 69 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:36,794 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 553 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:16:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-03-21 00:16:36,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 520. [2022-03-21 00:16:36,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 515 states have (on average 1.5262135922330098) internal successors, (786), 515 states have internal predecessors, (786), 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 00:16:36,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 790 transitions. [2022-03-21 00:16:36,858 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 790 transitions. Word has length 147 [2022-03-21 00:16:36,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:36,858 INFO L478 AbstractCegarLoop]: Abstraction has 520 states and 790 transitions. [2022-03-21 00:16:36,858 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 00:16:36,858 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 790 transitions. [2022-03-21 00:16:36,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-21 00:16:36,860 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:36,860 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2022-03-21 00:16:36,860 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-21 00:16:36,860 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:36,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:36,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1338091482, now seen corresponding path program 1 times [2022-03-21 00:16:36,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:36,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1259673492] [2022-03-21 00:16:36,883 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:36,883 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:36,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1338091482, now seen corresponding path program 2 times [2022-03-21 00:16:36,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:36,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678224272] [2022-03-21 00:16:36,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:36,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:36,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:37,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:37,010 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-21 00:16:37,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:37,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678224272] [2022-03-21 00:16:37,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678224272] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:37,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:37,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:37,012 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:37,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1259673492] [2022-03-21 00:16:37,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1259673492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:37,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:37,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:16:37,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902810555] [2022-03-21 00:16:37,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:37,013 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:16:37,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:37,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:16:37,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:16:37,014 INFO L87 Difference]: Start difference. First operand 520 states and 790 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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 00:16:38,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:40,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:42,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:43,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:43,428 INFO L93 Difference]: Finished difference Result 1084 states and 1653 transitions. [2022-03-21 00:16:43,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:16:43,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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 148 [2022-03-21 00:16:43,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:43,430 INFO L225 Difference]: With dead ends: 1084 [2022-03-21 00:16:43,430 INFO L226 Difference]: Without dead ends: 590 [2022-03-21 00:16:43,431 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 00:16:43,431 INFO L913 BasicCegarLoop]: 155 mSDtfsCounter, 137 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:43,432 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 436 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-21 00:16:43,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-03-21 00:16:43,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 520. [2022-03-21 00:16:43,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 515 states have (on average 1.5106796116504855) internal successors, (778), 515 states have internal predecessors, (778), 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 00:16:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 782 transitions. [2022-03-21 00:16:43,474 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 782 transitions. Word has length 148 [2022-03-21 00:16:43,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:43,474 INFO L478 AbstractCegarLoop]: Abstraction has 520 states and 782 transitions. [2022-03-21 00:16:43,475 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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 00:16:43,475 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 782 transitions. [2022-03-21 00:16:43,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-21 00:16:43,476 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:43,476 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2022-03-21 00:16:43,476 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-21 00:16:43,476 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:43,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:43,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1059379048, now seen corresponding path program 1 times [2022-03-21 00:16:43,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:43,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [352925705] [2022-03-21 00:16:43,496 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:43,496 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:43,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1059379048, now seen corresponding path program 2 times [2022-03-21 00:16:43,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:43,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056303091] [2022-03-21 00:16:43,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:43,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:43,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-21 00:16:43,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:43,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056303091] [2022-03-21 00:16:43,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056303091] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:43,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:43,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:16:43,614 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:43,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [352925705] [2022-03-21 00:16:43,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [352925705] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:43,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:43,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:16:43,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63757821] [2022-03-21 00:16:43,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:43,615 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:16:43,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:43,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:16:43,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:16:43,615 INFO L87 Difference]: Start difference. First operand 520 states and 782 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 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 00:16:45,631 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 00:16:46,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:46,035 INFO L93 Difference]: Finished difference Result 1505 states and 2284 transitions. [2022-03-21 00:16:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:16:46,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 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 148 [2022-03-21 00:16:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:46,038 INFO L225 Difference]: With dead ends: 1505 [2022-03-21 00:16:46,038 INFO L226 Difference]: Without dead ends: 1011 [2022-03-21 00:16:46,039 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 00:16:46,040 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 151 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:46,040 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 456 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-21 00:16:46,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2022-03-21 00:16:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1011. [2022-03-21 00:16:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 1006 states have (on average 1.5) internal successors, (1509), 1006 states have internal predecessors, (1509), 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 00:16:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1513 transitions. [2022-03-21 00:16:46,125 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1513 transitions. Word has length 148 [2022-03-21 00:16:46,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:46,125 INFO L478 AbstractCegarLoop]: Abstraction has 1011 states and 1513 transitions. [2022-03-21 00:16:46,126 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 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 00:16:46,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1513 transitions. [2022-03-21 00:16:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-21 00:16:46,128 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:46,128 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2022-03-21 00:16:46,128 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-21 00:16:46,128 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:46,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1368879574, now seen corresponding path program 1 times [2022-03-21 00:16:46,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:46,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [357479258] [2022-03-21 00:16:46,147 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:46,148 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:46,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1368879574, now seen corresponding path program 2 times [2022-03-21 00:16:46,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:46,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495710368] [2022-03-21 00:16:46,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:46,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:46,267 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-03-21 00:16:46,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:46,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495710368] [2022-03-21 00:16:46,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495710368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:46,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:46,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:16:46,268 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:46,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [357479258] [2022-03-21 00:16:46,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [357479258] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:46,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:46,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:16:46,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920073018] [2022-03-21 00:16:46,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:46,269 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:16:46,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:46,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:16:46,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:16:46,270 INFO L87 Difference]: Start difference. First operand 1011 states and 1513 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 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 00:16:48,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:49,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:50,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:50,867 INFO L93 Difference]: Finished difference Result 2023 states and 3033 transitions. [2022-03-21 00:16:50,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:16:50,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 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 148 [2022-03-21 00:16:50,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:50,871 INFO L225 Difference]: With dead ends: 2023 [2022-03-21 00:16:50,871 INFO L226 Difference]: Without dead ends: 1038 [2022-03-21 00:16:50,872 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 00:16:50,873 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:50,873 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 435 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-03-21 00:16:50,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2022-03-21 00:16:50,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1038. [2022-03-21 00:16:50,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 1033 states have (on average 1.494675701839303) internal successors, (1544), 1033 states have internal predecessors, (1544), 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 00:16:50,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1548 transitions. [2022-03-21 00:16:50,965 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1548 transitions. Word has length 148 [2022-03-21 00:16:50,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:50,966 INFO L478 AbstractCegarLoop]: Abstraction has 1038 states and 1548 transitions. [2022-03-21 00:16:50,966 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 3 states have internal predecessors, (94), 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 00:16:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1548 transitions. [2022-03-21 00:16:50,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-21 00:16:50,971 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:50,971 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2022-03-21 00:16:50,971 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-21 00:16:50,971 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:50,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:50,972 INFO L85 PathProgramCache]: Analyzing trace with hash -681529324, now seen corresponding path program 1 times [2022-03-21 00:16:50,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:50,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [23406329] [2022-03-21 00:16:50,993 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:50,993 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:50,993 INFO L85 PathProgramCache]: Analyzing trace with hash -681529324, now seen corresponding path program 2 times [2022-03-21 00:16:50,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:50,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099131447] [2022-03-21 00:16:50,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:50,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-03-21 00:16:51,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:51,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099131447] [2022-03-21 00:16:51,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099131447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:51,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:51,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:16:51,100 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:51,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [23406329] [2022-03-21 00:16:51,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [23406329] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:51,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:51,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:16:51,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752066604] [2022-03-21 00:16:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:51,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:16:51,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:51,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:16:51,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:16:51,102 INFO L87 Difference]: Start difference. First operand 1038 states and 1548 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 00:16:52,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:53,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:54,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:55,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:16:55,217 INFO L93 Difference]: Finished difference Result 2052 states and 3069 transitions. [2022-03-21 00:16:55,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:16:55,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 148 [2022-03-21 00:16:55,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:16:55,220 INFO L225 Difference]: With dead ends: 2052 [2022-03-21 00:16:55,220 INFO L226 Difference]: Without dead ends: 1040 [2022-03-21 00:16:55,222 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 00:16:55,223 INFO L913 BasicCegarLoop]: 229 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-03-21 00:16:55,223 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 414 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-03-21 00:16:55,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-03-21 00:16:55,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2022-03-21 00:16:55,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 1035 states have (on average 1.493719806763285) internal successors, (1546), 1035 states have internal predecessors, (1546), 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 00:16:55,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1550 transitions. [2022-03-21 00:16:55,285 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1550 transitions. Word has length 148 [2022-03-21 00:16:55,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:16:55,286 INFO L478 AbstractCegarLoop]: Abstraction has 1040 states and 1550 transitions. [2022-03-21 00:16:55,286 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 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 00:16:55,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1550 transitions. [2022-03-21 00:16:55,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-21 00:16:55,288 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:16:55,288 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1] [2022-03-21 00:16:55,288 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-21 00:16:55,289 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:16:55,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:16:55,289 INFO L85 PathProgramCache]: Analyzing trace with hash 876192622, now seen corresponding path program 1 times [2022-03-21 00:16:55,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:55,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1613862860] [2022-03-21 00:16:55,309 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:16:55,310 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:16:55,310 INFO L85 PathProgramCache]: Analyzing trace with hash 876192622, now seen corresponding path program 2 times [2022-03-21 00:16:55,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:16:55,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572991562] [2022-03-21 00:16:55,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:16:55,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:16:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:16:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:16:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-21 00:16:55,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:16:55,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572991562] [2022-03-21 00:16:55,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572991562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:55,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:55,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:16:55,446 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:16:55,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1613862860] [2022-03-21 00:16:55,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1613862860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:16:55,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:16:55,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:16:55,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768465994] [2022-03-21 00:16:55,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:16:55,447 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:16:55,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:16:55,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:16:55,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:16:55,448 INFO L87 Difference]: Start difference. First operand 1040 states and 1550 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 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 00:16:56,599 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:16:58,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:00,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:01,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:17:01,230 INFO L93 Difference]: Finished difference Result 2543 states and 3818 transitions. [2022-03-21 00:17:01,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:17:01,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 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 150 [2022-03-21 00:17:01,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:17:01,235 INFO L225 Difference]: With dead ends: 2543 [2022-03-21 00:17:01,235 INFO L226 Difference]: Without dead ends: 1531 [2022-03-21 00:17:01,236 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 00:17:01,237 INFO L913 BasicCegarLoop]: 401 mSDtfsCounter, 156 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:17:01,237 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 595 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 478 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-21 00:17:01,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2022-03-21 00:17:01,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1531. [2022-03-21 00:17:01,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1526 states have (on average 1.4921363040629096) internal successors, (2277), 1526 states have internal predecessors, (2277), 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 00:17:01,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 2281 transitions. [2022-03-21 00:17:01,346 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 2281 transitions. Word has length 150 [2022-03-21 00:17:01,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:17:01,347 INFO L478 AbstractCegarLoop]: Abstraction has 1531 states and 2281 transitions. [2022-03-21 00:17:01,347 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 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 00:17:01,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 2281 transitions. [2022-03-21 00:17:01,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-03-21 00:17:01,350 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:17:01,350 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2022-03-21 00:17:01,350 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-21 00:17:01,350 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:17:01,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:17:01,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1363996308, now seen corresponding path program 1 times [2022-03-21 00:17:01,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:01,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1139664833] [2022-03-21 00:17:01,386 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:17:01,386 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:17:01,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1363996308, now seen corresponding path program 2 times [2022-03-21 00:17:01,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:17:01,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168159655] [2022-03-21 00:17:01,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:17:01,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:17:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:01,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:17:01,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:01,558 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-03-21 00:17:01,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:17:01,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168159655] [2022-03-21 00:17:01,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168159655] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:01,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:01,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:01,558 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:17:01,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1139664833] [2022-03-21 00:17:01,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1139664833] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:01,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:01,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:01,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163277695] [2022-03-21 00:17:01,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:17:01,559 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:17:01,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:01,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:17:01,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:17:01,560 INFO L87 Difference]: Start difference. First operand 1531 states and 2281 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 00:17:03,575 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 00:17:04,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:17:04,118 INFO L93 Difference]: Finished difference Result 3184 states and 4749 transitions. [2022-03-21 00:17:04,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:17:04,118 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 179 [2022-03-21 00:17:04,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:17:04,124 INFO L225 Difference]: With dead ends: 3184 [2022-03-21 00:17:04,124 INFO L226 Difference]: Without dead ends: 1681 [2022-03-21 00:17:04,126 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 00:17:04,126 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 40 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:17:04,126 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 655 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 500 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-21 00:17:04,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2022-03-21 00:17:04,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1615. [2022-03-21 00:17:04,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1610 states have (on average 1.4906832298136645) internal successors, (2400), 1610 states have internal predecessors, (2400), 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 00:17:04,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2404 transitions. [2022-03-21 00:17:04,257 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2404 transitions. Word has length 179 [2022-03-21 00:17:04,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:17:04,257 INFO L478 AbstractCegarLoop]: Abstraction has 1615 states and 2404 transitions. [2022-03-21 00:17:04,258 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 00:17:04,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2404 transitions. [2022-03-21 00:17:04,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-21 00:17:04,261 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:17:04,261 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:17:04,261 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-21 00:17:04,261 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:17:04,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:17:04,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2095504041, now seen corresponding path program 1 times [2022-03-21 00:17:04,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:04,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2055389482] [2022-03-21 00:17:13,260 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:17:13,260 INFO L85 PathProgramCache]: Analyzing trace with hash 2095504041, now seen corresponding path program 2 times [2022-03-21 00:17:13,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:17:13,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953144289] [2022-03-21 00:17:13,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:17:13,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:17:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:17:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:13,444 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-03-21 00:17:13,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:17:13,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953144289] [2022-03-21 00:17:13,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953144289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:13,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:13,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:13,445 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:17:13,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2055389482] [2022-03-21 00:17:13,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2055389482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:13,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:13,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:13,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17036822] [2022-03-21 00:17:13,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:17:13,446 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:17:13,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:13,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:17:13,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:17:13,446 INFO L87 Difference]: Start difference. First operand 1615 states and 2404 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 00:17:17,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:18,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:17:18,494 INFO L93 Difference]: Finished difference Result 3407 states and 5050 transitions. [2022-03-21 00:17:18,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:17:18,494 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 202 [2022-03-21 00:17:18,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:17:18,501 INFO L225 Difference]: With dead ends: 3407 [2022-03-21 00:17:18,501 INFO L226 Difference]: Without dead ends: 1820 [2022-03-21 00:17:18,503 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 00:17:18,504 INFO L913 BasicCegarLoop]: 156 mSDtfsCounter, 136 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-21 00:17:18,504 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 438 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-03-21 00:17:18,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2022-03-21 00:17:18,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1615. [2022-03-21 00:17:18,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1610 states have (on average 1.4739130434782608) internal successors, (2373), 1610 states have internal predecessors, (2373), 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 00:17:18,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2377 transitions. [2022-03-21 00:17:18,645 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2377 transitions. Word has length 202 [2022-03-21 00:17:18,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:17:18,645 INFO L478 AbstractCegarLoop]: Abstraction has 1615 states and 2377 transitions. [2022-03-21 00:17:18,645 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 00:17:18,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2377 transitions. [2022-03-21 00:17:18,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-21 00:17:18,649 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:17:18,649 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 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, 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 00:17:18,649 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-21 00:17:18,649 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:17:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:17:18,649 INFO L85 PathProgramCache]: Analyzing trace with hash -681149549, now seen corresponding path program 1 times [2022-03-21 00:17:18,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:18,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [965538363] [2022-03-21 00:17:18,682 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:17:18,682 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:17:18,682 INFO L85 PathProgramCache]: Analyzing trace with hash -681149549, now seen corresponding path program 2 times [2022-03-21 00:17:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:17:18,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335544440] [2022-03-21 00:17:18,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:17:18,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:17:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:18,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:17:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-03-21 00:17:18,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:17:18,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335544440] [2022-03-21 00:17:18,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335544440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:18,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:18,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:17:18,863 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:17:18,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [965538363] [2022-03-21 00:17:18,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [965538363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:18,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:18,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:17:18,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550558168] [2022-03-21 00:17:18,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:17:18,864 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:17:18,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:18,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:17:18,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:17:18,865 INFO L87 Difference]: Start difference. First operand 1615 states and 2377 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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 00:17:20,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:22,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:24,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:24,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:17:24,886 INFO L93 Difference]: Finished difference Result 3722 states and 5505 transitions. [2022-03-21 00:17:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:17:24,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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 203 [2022-03-21 00:17:24,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:17:24,892 INFO L225 Difference]: With dead ends: 3722 [2022-03-21 00:17:24,892 INFO L226 Difference]: Without dead ends: 2135 [2022-03-21 00:17:24,895 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 00:17:24,896 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 161 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 23 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-21 00:17:24,896 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 390 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 289 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-21 00:17:24,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2135 states. [2022-03-21 00:17:25,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2135 to 2135. [2022-03-21 00:17:25,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2130 states have (on average 1.4755868544600939) internal successors, (3143), 2130 states have internal predecessors, (3143), 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 00:17:25,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3147 transitions. [2022-03-21 00:17:25,072 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3147 transitions. Word has length 203 [2022-03-21 00:17:25,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:17:25,072 INFO L478 AbstractCegarLoop]: Abstraction has 2135 states and 3147 transitions. [2022-03-21 00:17:25,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 3 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 00:17:25,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3147 transitions. [2022-03-21 00:17:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-03-21 00:17:25,075 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:17:25,075 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:17:25,076 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-21 00:17:25,076 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:17:25,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:17:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1744677605, now seen corresponding path program 1 times [2022-03-21 00:17:25,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:25,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [411590680] [2022-03-21 00:17:34,242 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:17:34,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1744677605, now seen corresponding path program 2 times [2022-03-21 00:17:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:17:34,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987722545] [2022-03-21 00:17:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:17:34,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:17:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:34,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:17:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:34,404 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-21 00:17:34,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:17:34,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987722545] [2022-03-21 00:17:34,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987722545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:34,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:34,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:34,404 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:17:34,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [411590680] [2022-03-21 00:17:34,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [411590680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:34,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:34,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:34,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898630205] [2022-03-21 00:17:34,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:17:34,406 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:17:34,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:34,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:17:34,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:17:34,407 INFO L87 Difference]: Start difference. First operand 2135 states and 3147 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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 00:17:35,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:37,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:39,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:40,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:17:40,124 INFO L93 Difference]: Finished difference Result 4311 states and 6363 transitions. [2022-03-21 00:17:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:17:40,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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 233 [2022-03-21 00:17:40,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:17:40,131 INFO L225 Difference]: With dead ends: 4311 [2022-03-21 00:17:40,131 INFO L226 Difference]: Without dead ends: 2204 [2022-03-21 00:17:40,136 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 00:17:40,136 INFO L913 BasicCegarLoop]: 256 mSDtfsCounter, 38 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:17:40,136 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 643 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-21 00:17:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2022-03-21 00:17:40,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2135. [2022-03-21 00:17:40,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2130 states have (on average 1.4737089201877935) internal successors, (3139), 2130 states have internal predecessors, (3139), 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 00:17:40,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3143 transitions. [2022-03-21 00:17:40,343 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3143 transitions. Word has length 233 [2022-03-21 00:17:40,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:17:40,343 INFO L478 AbstractCegarLoop]: Abstraction has 2135 states and 3143 transitions. [2022-03-21 00:17:40,343 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 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 00:17:40,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3143 transitions. [2022-03-21 00:17:40,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-03-21 00:17:40,347 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:17:40,347 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:17:40,347 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-21 00:17:40,347 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:17:40,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:17:40,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1564687898, now seen corresponding path program 1 times [2022-03-21 00:17:40,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:40,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [942619467] [2022-03-21 00:17:49,162 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:17:49,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1564687898, now seen corresponding path program 2 times [2022-03-21 00:17:49,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:17:49,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909060109] [2022-03-21 00:17:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:17:49,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:17:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:17:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:49,335 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-03-21 00:17:49,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:17:49,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909060109] [2022-03-21 00:17:49,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909060109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:49,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:49,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:49,336 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:17:49,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [942619467] [2022-03-21 00:17:49,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [942619467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:49,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:49,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-21 00:17:49,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911856446] [2022-03-21 00:17:49,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:17:49,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-21 00:17:49,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:49,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-21 00:17:49,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-21 00:17:49,337 INFO L87 Difference]: Start difference. First operand 2135 states and 3143 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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 00:17:50,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:52,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:54,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:56,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:17:57,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:17:57,069 INFO L93 Difference]: Finished difference Result 4295 states and 6333 transitions. [2022-03-21 00:17:57,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-21 00:17:57,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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 234 [2022-03-21 00:17:57,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:17:57,075 INFO L225 Difference]: With dead ends: 4295 [2022-03-21 00:17:57,076 INFO L226 Difference]: Without dead ends: 2188 [2022-03-21 00:17:57,079 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 00:17:57,080 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 32 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:17:57,080 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 635 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 470 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-03-21 00:17:57,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2022-03-21 00:17:57,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2135. [2022-03-21 00:17:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2135 states, 2130 states have (on average 1.471830985915493) internal successors, (3135), 2130 states have internal predecessors, (3135), 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 00:17:57,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 3139 transitions. [2022-03-21 00:17:57,237 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 3139 transitions. Word has length 234 [2022-03-21 00:17:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:17:57,237 INFO L478 AbstractCegarLoop]: Abstraction has 2135 states and 3139 transitions. [2022-03-21 00:17:57,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 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 00:17:57,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 3139 transitions. [2022-03-21 00:17:57,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-03-21 00:17:57,241 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:17:57,241 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 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 00:17:57,241 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-21 00:17:57,242 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:17:57,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:17:57,242 INFO L85 PathProgramCache]: Analyzing trace with hash -350585189, now seen corresponding path program 1 times [2022-03-21 00:17:57,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:57,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [160285745] [2022-03-21 00:17:57,279 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:17:57,279 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:17:57,279 INFO L85 PathProgramCache]: Analyzing trace with hash -350585189, now seen corresponding path program 2 times [2022-03-21 00:17:57,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:17:57,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786890102] [2022-03-21 00:17:57,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:17:57,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:17:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:17:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:17:57,439 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 374 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-03-21 00:17:57,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:17:57,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786890102] [2022-03-21 00:17:57,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786890102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:57,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:57,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:17:57,439 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:17:57,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [160285745] [2022-03-21 00:17:57,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [160285745] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:17:57,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:17:57,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:17:57,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848146800] [2022-03-21 00:17:57,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:17:57,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:17:57,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:17:57,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:17:57,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:17:57,440 INFO L87 Difference]: Start difference. First operand 2135 states and 3139 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 00:17:59,177 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:01,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:18:02,292 INFO L93 Difference]: Finished difference Result 4761 states and 7013 transitions. [2022-03-21 00:18:02,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:18:02,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 236 [2022-03-21 00:18:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:18:02,298 INFO L225 Difference]: With dead ends: 4761 [2022-03-21 00:18:02,298 INFO L226 Difference]: Without dead ends: 2654 [2022-03-21 00:18:02,301 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 00:18:02,302 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:18:02,302 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-03-21 00:18:02,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2022-03-21 00:18:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2654. [2022-03-21 00:18:02,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2649 states have (on average 1.4707436768591922) internal successors, (3896), 2649 states have internal predecessors, (3896), 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 00:18:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 3900 transitions. [2022-03-21 00:18:02,498 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 3900 transitions. Word has length 236 [2022-03-21 00:18:02,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:18:02,499 INFO L478 AbstractCegarLoop]: Abstraction has 2654 states and 3900 transitions. [2022-03-21 00:18:02,499 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 00:18:02,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 3900 transitions. [2022-03-21 00:18:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-03-21 00:18:02,503 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:18:02,503 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:18:02,504 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-21 00:18:02,504 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:18:02,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:18:02,504 INFO L85 PathProgramCache]: Analyzing trace with hash -48256832, now seen corresponding path program 1 times [2022-03-21 00:18:02,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:02,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1851641766] [2022-03-21 00:18:02,553 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:18:02,553 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:18:02,553 INFO L85 PathProgramCache]: Analyzing trace with hash -48256832, now seen corresponding path program 2 times [2022-03-21 00:18:02,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:18:02,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357909854] [2022-03-21 00:18:02,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:18:02,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:18:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:18:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:02,702 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-21 00:18:02,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:18:02,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357909854] [2022-03-21 00:18:02,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357909854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:02,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:02,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:02,703 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:18:02,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1851641766] [2022-03-21 00:18:02,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1851641766] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:02,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:02,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:02,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547591956] [2022-03-21 00:18:02,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:18:02,704 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:18:02,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:02,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:18:02,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:18:02,706 INFO L87 Difference]: Start difference. First operand 2654 states and 3900 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 00:18:05,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:07,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:08,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:18:08,211 INFO L93 Difference]: Finished difference Result 5800 states and 8549 transitions. [2022-03-21 00:18:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:18:08,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 242 [2022-03-21 00:18:08,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:18:08,216 INFO L225 Difference]: With dead ends: 5800 [2022-03-21 00:18:08,216 INFO L226 Difference]: Without dead ends: 3174 [2022-03-21 00:18:08,219 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 00:18:08,219 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 167 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-21 00:18:08,219 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 389 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 289 Invalid, 2 Unknown, 0 Unchecked, 5.3s Time] [2022-03-21 00:18:08,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2022-03-21 00:18:08,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 3174. [2022-03-21 00:18:08,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3174 states, 3169 states have (on average 1.4720732092142632) internal successors, (4665), 3169 states have internal predecessors, (4665), 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 00:18:08,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 4669 transitions. [2022-03-21 00:18:08,523 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 4669 transitions. Word has length 242 [2022-03-21 00:18:08,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:18:08,523 INFO L478 AbstractCegarLoop]: Abstraction has 3174 states and 4669 transitions. [2022-03-21 00:18:08,523 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 3 states have internal predecessors, (152), 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 00:18:08,523 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 4669 transitions. [2022-03-21 00:18:08,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-03-21 00:18:08,527 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:18:08,527 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:18:08,527 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-21 00:18:08,527 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:18:08,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:18:08,527 INFO L85 PathProgramCache]: Analyzing trace with hash 805139114, now seen corresponding path program 1 times [2022-03-21 00:18:08,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:08,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [689953834] [2022-03-21 00:18:08,564 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:18:08,564 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:18:08,564 INFO L85 PathProgramCache]: Analyzing trace with hash 805139114, now seen corresponding path program 2 times [2022-03-21 00:18:08,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:18:08,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681617613] [2022-03-21 00:18:08,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:18:08,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:18:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:18:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:08,752 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-03-21 00:18:08,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:18:08,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681617613] [2022-03-21 00:18:08,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681617613] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:08,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:08,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:08,753 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:18:08,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [689953834] [2022-03-21 00:18:08,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [689953834] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:08,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:08,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:08,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816028131] [2022-03-21 00:18:08,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:18:08,754 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:18:08,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:08,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:18:08,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:18:08,754 INFO L87 Difference]: Start difference. First operand 3174 states and 4669 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 00:18:11,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:13,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:14,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:18:14,233 INFO L93 Difference]: Finished difference Result 6840 states and 10087 transitions. [2022-03-21 00:18:14,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:18:14,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 00:18:14,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:18:14,240 INFO L225 Difference]: With dead ends: 6840 [2022-03-21 00:18:14,240 INFO L226 Difference]: Without dead ends: 3694 [2022-03-21 00:18:14,244 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 00:18:14,244 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 168 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:18:14,244 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 388 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-21 00:18:14,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2022-03-21 00:18:14,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3694. [2022-03-21 00:18:14,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 3689 states have (on average 1.473298997018162) internal successors, (5435), 3689 states have internal predecessors, (5435), 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 00:18:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 5439 transitions. [2022-03-21 00:18:14,540 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 5439 transitions. Word has length 244 [2022-03-21 00:18:14,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:18:14,540 INFO L478 AbstractCegarLoop]: Abstraction has 3694 states and 5439 transitions. [2022-03-21 00:18:14,540 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 00:18:14,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 5439 transitions. [2022-03-21 00:18:14,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-03-21 00:18:14,557 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:18:14,558 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 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, 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 00:18:14,558 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-21 00:18:14,558 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:18:14,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:18:14,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1286257332, now seen corresponding path program 1 times [2022-03-21 00:18:14,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:14,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2128229212] [2022-03-21 00:18:14,600 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:18:14,601 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:18:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1286257332, now seen corresponding path program 2 times [2022-03-21 00:18:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:18:14,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832976624] [2022-03-21 00:18:14,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:18:14,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:18:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:14,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:18:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:14,783 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-03-21 00:18:14,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:18:14,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832976624] [2022-03-21 00:18:14,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832976624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:14,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:14,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:14,784 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:18:14,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2128229212] [2022-03-21 00:18:14,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2128229212] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:14,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:14,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:14,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722985194] [2022-03-21 00:18:14,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:18:14,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:18:14,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:14,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:18:14,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:18:14,786 INFO L87 Difference]: Start difference. First operand 3694 states and 5439 transitions. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 00:18:15,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:17,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:19,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:20,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:18:20,762 INFO L93 Difference]: Finished difference Result 7873 states and 11616 transitions. [2022-03-21 00:18:20,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:18:20,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 276 [2022-03-21 00:18:20,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:18:20,769 INFO L225 Difference]: With dead ends: 7873 [2022-03-21 00:18:20,769 INFO L226 Difference]: Without dead ends: 4207 [2022-03-21 00:18:20,778 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 00:18:20,778 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 150 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-21 00:18:20,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 594 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-21 00:18:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4207 states. [2022-03-21 00:18:21,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4207 to 4207. [2022-03-21 00:18:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4207 states, 4202 states have (on average 1.4728700618752975) internal successors, (6189), 4202 states have internal predecessors, (6189), 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 00:18:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4207 states to 4207 states and 6193 transitions. [2022-03-21 00:18:21,134 INFO L78 Accepts]: Start accepts. Automaton has 4207 states and 6193 transitions. Word has length 276 [2022-03-21 00:18:21,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:18:21,136 INFO L478 AbstractCegarLoop]: Abstraction has 4207 states and 6193 transitions. [2022-03-21 00:18:21,136 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 3 states have internal predecessors, (130), 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 00:18:21,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4207 states and 6193 transitions. [2022-03-21 00:18:21,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-03-21 00:18:21,143 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:18:21,143 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 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, 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 00:18:21,143 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-21 00:18:21,144 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:18:21,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:18:21,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1534403826, now seen corresponding path program 1 times [2022-03-21 00:18:21,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:21,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [925765311] [2022-03-21 00:18:21,174 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:18:21,174 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:18:21,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1534403826, now seen corresponding path program 2 times [2022-03-21 00:18:21,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:18:21,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096412255] [2022-03-21 00:18:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:18:21,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:18:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:18:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-03-21 00:18:21,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:18:21,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096412255] [2022-03-21 00:18:21,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096412255] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:21,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:21,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:21,375 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:18:21,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [925765311] [2022-03-21 00:18:21,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [925765311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:21,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:21,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:21,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344262498] [2022-03-21 00:18:21,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:18:21,377 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:18:21,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:18:21,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:18:21,377 INFO L87 Difference]: Start difference. First operand 4207 states and 6193 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 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 00:18:22,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:25,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:27,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:27,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:18:27,950 INFO L93 Difference]: Finished difference Result 8873 states and 13087 transitions. [2022-03-21 00:18:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:18:27,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 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 276 [2022-03-21 00:18:27,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:18:27,960 INFO L225 Difference]: With dead ends: 8873 [2022-03-21 00:18:27,960 INFO L226 Difference]: Without dead ends: 4694 [2022-03-21 00:18:27,971 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 00:18:27,971 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:18:27,971 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 597 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-21 00:18:27,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2022-03-21 00:18:28,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4694. [2022-03-21 00:18:28,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4694 states, 4689 states have (on average 1.472168905950096) internal successors, (6903), 4689 states have internal predecessors, (6903), 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 00:18:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4694 states to 4694 states and 6907 transitions. [2022-03-21 00:18:28,462 INFO L78 Accepts]: Start accepts. Automaton has 4694 states and 6907 transitions. Word has length 276 [2022-03-21 00:18:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:18:28,463 INFO L478 AbstractCegarLoop]: Abstraction has 4694 states and 6907 transitions. [2022-03-21 00:18:28,463 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 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 00:18:28,463 INFO L276 IsEmpty]: Start isEmpty. Operand 4694 states and 6907 transitions. [2022-03-21 00:18:28,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-03-21 00:18:28,469 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:18:28,469 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:18:28,469 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-21 00:18:28,469 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:18:28,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:18:28,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2131522909, now seen corresponding path program 1 times [2022-03-21 00:18:28,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:28,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1141924394] [2022-03-21 00:18:34,443 WARN L232 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 277 DAG size of output: 223 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:18:53,627 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:18:53,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2131522909, now seen corresponding path program 2 times [2022-03-21 00:18:53,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:18:53,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983024292] [2022-03-21 00:18:53,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:18:53,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:18:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:53,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:18:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:18:53,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-03-21 00:18:53,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:18:53,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983024292] [2022-03-21 00:18:53,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983024292] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:53,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:53,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:53,835 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:18:53,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1141924394] [2022-03-21 00:18:53,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1141924394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:18:53,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:18:53,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:18:53,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557705361] [2022-03-21 00:18:53,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:18:53,835 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:18:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:18:53,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:18:53,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:18:53,836 INFO L87 Difference]: Start difference. First operand 4694 states and 6907 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 00:18:55,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:57,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:59,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:18:59,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:18:59,949 INFO L93 Difference]: Finished difference Result 9880 states and 14563 transitions. [2022-03-21 00:18:59,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:18:59,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 351 [2022-03-21 00:18:59,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:18:59,960 INFO L225 Difference]: With dead ends: 9880 [2022-03-21 00:18:59,960 INFO L226 Difference]: Without dead ends: 5214 [2022-03-21 00:18:59,970 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 00:18:59,970 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 158 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-21 00:18:59,971 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 385 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 289 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-21 00:18:59,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5214 states. [2022-03-21 00:19:00,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5214 to 5214. [2022-03-21 00:19:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5209 states have (on average 1.4736033787675178) internal successors, (7676), 5209 states have internal predecessors, (7676), 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 00:19:00,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 7680 transitions. [2022-03-21 00:19:00,478 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 7680 transitions. Word has length 351 [2022-03-21 00:19:00,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:19:00,478 INFO L478 AbstractCegarLoop]: Abstraction has 5214 states and 7680 transitions. [2022-03-21 00:19:00,478 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 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 00:19:00,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 7680 transitions. [2022-03-21 00:19:00,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-03-21 00:19:00,486 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:19:00,486 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:00,487 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-21 00:19:00,487 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:19:00,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:19:00,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2032087717, now seen corresponding path program 1 times [2022-03-21 00:19:00,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:19:00,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [846139973] [2022-03-21 00:19:06,793 WARN L232 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 277 DAG size of output: 223 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:19:21,706 WARN L232 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 279 DAG size of output: 225 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:19:29,682 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:19:29,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2032087717, now seen corresponding path program 2 times [2022-03-21 00:19:29,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:19:29,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867635497] [2022-03-21 00:19:29,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:19:29,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:19:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:19:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:19:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:19:29,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-03-21 00:19:29,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:19:29,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867635497] [2022-03-21 00:19:29,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867635497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:19:29,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:19:29,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:19:29,875 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:19:29,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [846139973] [2022-03-21 00:19:29,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [846139973] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:19:29,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:19:29,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:19:29,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214675251] [2022-03-21 00:19:29,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:19:29,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:19:29,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:19:29,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:19:29,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:19:29,877 INFO L87 Difference]: Start difference. First operand 5214 states and 7680 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 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 00:19:33,000 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 00:19:33,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:19:33,741 INFO L93 Difference]: Finished difference Result 10920 states and 16109 transitions. [2022-03-21 00:19:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:19:33,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 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 392 [2022-03-21 00:19:33,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:19:33,748 INFO L225 Difference]: With dead ends: 10920 [2022-03-21 00:19:33,748 INFO L226 Difference]: Without dead ends: 5734 [2022-03-21 00:19:33,756 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 00:19:33,757 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-21 00:19:33,757 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 384 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 290 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-03-21 00:19:33,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5734 states. [2022-03-21 00:19:34,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5734 to 5734. [2022-03-21 00:19:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5734 states, 5729 states have (on average 1.4749519986035957) internal successors, (8450), 5729 states have internal predecessors, (8450), 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 00:19:34,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5734 states to 5734 states and 8454 transitions. [2022-03-21 00:19:34,232 INFO L78 Accepts]: Start accepts. Automaton has 5734 states and 8454 transitions. Word has length 392 [2022-03-21 00:19:34,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:19:34,232 INFO L478 AbstractCegarLoop]: Abstraction has 5734 states and 8454 transitions. [2022-03-21 00:19:34,232 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 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 00:19:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5734 states and 8454 transitions. [2022-03-21 00:19:34,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-03-21 00:19:34,239 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:19:34,239 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-21 00:19:34,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-21 00:19:34,239 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:19:34,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:19:34,239 INFO L85 PathProgramCache]: Analyzing trace with hash 2031073003, now seen corresponding path program 1 times [2022-03-21 00:19:34,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:19:34,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [554928413] [2022-03-21 00:19:34,293 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-21 00:19:34,293 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-21 00:19:34,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2031073003, now seen corresponding path program 2 times [2022-03-21 00:19:34,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-21 00:19:34,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307523905] [2022-03-21 00:19:34,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-21 00:19:34,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-21 00:19:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:19:34,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-21 00:19:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-21 00:19:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-03-21 00:19:34,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-21 00:19:34,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307523905] [2022-03-21 00:19:34,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307523905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:19:34,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:19:34,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:19:34,571 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-21 00:19:34,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [554928413] [2022-03-21 00:19:34,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [554928413] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-21 00:19:34,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-21 00:19:34,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-21 00:19:34,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381160116] [2022-03-21 00:19:34,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-21 00:19:34,572 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-21 00:19:34,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-21 00:19:34,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-21 00:19:34,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-21 00:19:34,572 INFO L87 Difference]: Start difference. First operand 5734 states and 8454 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 00:19:37,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:19:39,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-21 00:19:40,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-21 00:19:40,127 INFO L93 Difference]: Finished difference Result 11954 states and 17648 transitions. [2022-03-21 00:19:40,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-21 00:19:40,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 399 [2022-03-21 00:19:40,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-21 00:19:40,134 INFO L225 Difference]: With dead ends: 11954 [2022-03-21 00:19:40,134 INFO L226 Difference]: Without dead ends: 6248 [2022-03-21 00:19:40,142 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 00:19:40,142 INFO L913 BasicCegarLoop]: 400 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-03-21 00:19:40,142 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 594 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-03-21 00:19:40,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6248 states. [2022-03-21 00:19:40,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6248 to 6248. [2022-03-21 00:19:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6248 states, 6243 states have (on average 1.474451385551818) internal successors, (9205), 6243 states have internal predecessors, (9205), 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 00:19:40,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6248 states to 6248 states and 9209 transitions. [2022-03-21 00:19:40,636 INFO L78 Accepts]: Start accepts. Automaton has 6248 states and 9209 transitions. Word has length 399 [2022-03-21 00:19:40,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-21 00:19:40,636 INFO L478 AbstractCegarLoop]: Abstraction has 6248 states and 9209 transitions. [2022-03-21 00:19:40,636 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 3 states have internal predecessors, (154), 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 00:19:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 6248 states and 9209 transitions. [2022-03-21 00:19:40,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-03-21 00:19:40,663 INFO L491 BasicCegarLoop]: Found error trace [2022-03-21 00:19:40,663 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:40,663 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-21 00:19:40,663 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-21 00:19:40,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-21 00:19:40,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2048463644, now seen corresponding path program 1 times [2022-03-21 00:19:40,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-21 00:19:40,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [366118130] [2022-03-21 00:19:46,734 WARN L232 SmtUtils]: Spent 6.07s on a formula simplification. DAG size of input: 277 DAG size of output: 223 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:20:12,802 WARN L232 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 279 DAG size of output: 225 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-21 00:20:16,480 ERROR L250 FreeRefinementEngine]: Caught unknown exception: Undeclared function symbol (* (Array Int (Array Int Int)) Int) [2022-03-21 00:20:16,481 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-21 00:20:16,481 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (* (Array Int (Array Int Int)) Int) at de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1615) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:401) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:249) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.mul(SmtUtils.java:597) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrUtils.matrixVectorMultiplicationWithVariables(QvasrUtils.java:226) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.intVasrAbstractionToFormula(QvasrSummarizer.java:177) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrSummarizer.summarizeLoop(QvasrSummarizer.java:140) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.qvasr.QvasrLoopSummarization.getQvasrAcceleration(QvasrLoopSummarization.java:87) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.AcceleratorQvasr.accelerateLoop(AcceleratorQvasr.java:91) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.accelerateNestedLoops(AcceleratedInterpolationCore.java:474) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:230) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAcceleratedInterpolation.construct(IpTcStrategyModuleAcceleratedInterpolation.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:595) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-21 00:20:16,490 INFO L158 Benchmark]: Toolchain (without parser) took 393939.35ms. Allocated memory was 170.9MB in the beginning and 563.1MB in the end (delta: 392.2MB). Free memory was 116.7MB in the beginning and 139.9MB in the end (delta: -23.2MB). Peak memory consumption was 422.2MB. Max. memory is 8.0GB. [2022-03-21 00:20:16,490 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 170.9MB. Free memory was 136.0MB in the beginning and 135.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-21 00:20:16,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 671.08ms. Allocated memory was 170.9MB in the beginning and 222.3MB in the end (delta: 51.4MB). Free memory was 116.4MB in the beginning and 177.0MB in the end (delta: -60.6MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. [2022-03-21 00:20:16,490 INFO L158 Benchmark]: Boogie Preprocessor took 125.71ms. Allocated memory is still 222.3MB. Free memory was 177.0MB in the beginning and 169.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-21 00:20:16,490 INFO L158 Benchmark]: RCFGBuilder took 2035.46ms. Allocated memory is still 222.3MB. Free memory was 169.1MB in the beginning and 154.4MB in the end (delta: 14.6MB). Peak memory consumption was 45.0MB. Max. memory is 8.0GB. [2022-03-21 00:20:16,490 INFO L158 Benchmark]: TraceAbstraction took 391101.69ms. Allocated memory was 222.3MB in the beginning and 563.1MB in the end (delta: 340.8MB). Free memory was 153.9MB in the beginning and 139.9MB in the end (delta: 14.0MB). Peak memory consumption was 407.8MB. Max. memory is 8.0GB. [2022-03-21 00:20:16,490 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 170.9MB. Free memory was 136.0MB in the beginning and 135.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 671.08ms. Allocated memory was 170.9MB in the beginning and 222.3MB in the end (delta: 51.4MB). Free memory was 116.4MB in the beginning and 177.0MB in the end (delta: -60.6MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 125.71ms. Allocated memory is still 222.3MB. Free memory was 177.0MB in the beginning and 169.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * RCFGBuilder took 2035.46ms. Allocated memory is still 222.3MB. Free memory was 169.1MB in the beginning and 154.4MB in the end (delta: 14.6MB). Peak memory consumption was 45.0MB. Max. memory is 8.0GB. * TraceAbstraction took 391101.69ms. Allocated memory was 222.3MB in the beginning and 563.1MB in the end (delta: 340.8MB). Free memory was 153.9MB in the beginning and 139.9MB in the end (delta: 14.0MB). Peak memory consumption was 407.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (* (Array Int (Array Int Int)) Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (* (Array Int (Array Int Int)) Int): de.uni_freiburg.informatik.ultimate.logic.Theory.term(Theory.java:1615) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-21 00:20:16,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...