/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.03.i.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 04:44:33,724 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 04:44:33,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 04:44:33,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-15 04:44:33,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-15 04:44:33,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-15 04:44:33,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-15 04:44:33,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-15 04:44:33,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-15 04:44:33,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-15 04:44:33,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-15 04:44:33,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-15 04:44:33,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-15 04:44:33,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-15 04:44:33,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-15 04:44:33,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-15 04:44:33,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-15 04:44:33,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-15 04:44:33,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-15 04:44:33,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-15 04:44:33,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-15 04:44:33,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-15 04:44:33,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-15 04:44:33,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-15 04:44:33,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-15 04:44:33,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 04:44:33,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 04:44:33,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 04:44:33,817 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-15 04:44:33,831 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 04:44:33,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 04:44:33,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 04:44:33,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 04:44:33,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 04:44:33,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 04:44:33,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 04:44:33,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 04:44:33,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 04:44:33,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 04:44:33,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 04:44:33,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 04:44:33,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 04:44:33,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 04:44:33,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 04:44:33,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:44:33,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 04:44:33,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 04:44:33,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 04:44:33,835 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-15 04:44:33,835 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 04:44:34,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 04:44:34,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 04:44:34,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 04:44:34,074 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 04:44:34,074 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 04:44:34,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.03.i.cil.c [2022-02-15 04:44:34,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02092c37f/ceca39de133c49faa566ba3ee45a9c02/FLAGc2899fe87 [2022-02-15 04:44:34,578 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 04:44:34,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.03.i.cil.c [2022-02-15 04:44:34,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02092c37f/ceca39de133c49faa566ba3ee45a9c02/FLAGc2899fe87 [2022-02-15 04:44:34,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02092c37f/ceca39de133c49faa566ba3ee45a9c02 [2022-02-15 04:44:34,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 04:44:34,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 04:44:34,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 04:44:34,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 04:44:34,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 04:44:34,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:44:34" (1/1) ... [2022-02-15 04:44:34,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29f39d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:34, skipping insertion in model container [2022-02-15 04:44:34,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 04:44:34" (1/1) ... [2022-02-15 04:44:34,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 04:44:34,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 04:44:35,288 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.03.i.cil.c[72493,72506] [2022-02-15 04:44:35,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:44:35,315 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 04:44:35,403 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.03.i.cil.c[72493,72506] [2022-02-15 04:44:35,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 04:44:35,419 INFO L208 MainTranslator]: Completed translation [2022-02-15 04:44:35,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35 WrapperNode [2022-02-15 04:44:35,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 04:44:35,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 04:44:35,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 04:44:35,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 04:44:35,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35" (1/1) ... [2022-02-15 04:44:35,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35" (1/1) ... [2022-02-15 04:44:35,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35" (1/1) ... [2022-02-15 04:44:35,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35" (1/1) ... [2022-02-15 04:44:35,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35" (1/1) ... [2022-02-15 04:44:35,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35" (1/1) ... [2022-02-15 04:44:35,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35" (1/1) ... [2022-02-15 04:44:35,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 04:44:35,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 04:44:35,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 04:44:35,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 04:44:35,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35" (1/1) ... [2022-02-15 04:44:35,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 04:44:35,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 04:44:35,596 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) [2022-02-15 04:44:35,625 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 [2022-02-15 04:44:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 04:44:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 04:44:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 04:44:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-02-15 04:44:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-02-15 04:44:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 04:44:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-02-15 04:44:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-02-15 04:44:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 04:44:35,642 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-02-15 04:44:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 04:44:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 04:44:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 04:44:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 04:44:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-02-15 04:44:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-02-15 04:44:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-02-15 04:44:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-02-15 04:44:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-02-15 04:44:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-02-15 04:44:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-02-15 04:44:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-02-15 04:44:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-02-15 04:44:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-02-15 04:44:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-02-15 04:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-15 04:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 04:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 04:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 04:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-15 04:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 04:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 04:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 04:44:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 04:44:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 04:44:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 04:44:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-02-15 04:44:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-02-15 04:44:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-02-15 04:44:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-02-15 04:44:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 04:44:35,829 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 04:44:35,831 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 04:44:38,169 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-02-15 04:44:38,672 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-02-15 04:44:38,672 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-02-15 04:44:38,687 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 04:44:38,697 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 04:44:38,698 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 04:44:38,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:44:38 BoogieIcfgContainer [2022-02-15 04:44:38,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 04:44:38,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 04:44:38,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 04:44:38,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 04:44:38,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 04:44:34" (1/3) ... [2022-02-15 04:44:38,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476fa09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:44:38, skipping insertion in model container [2022-02-15 04:44:38,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 04:44:35" (2/3) ... [2022-02-15 04:44:38,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476fa09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 04:44:38, skipping insertion in model container [2022-02-15 04:44:38,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 04:44:38" (3/3) ... [2022-02-15 04:44:38,707 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.03.i.cil.c [2022-02-15 04:44:38,712 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 04:44:38,712 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 04:44:38,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 04:44:38,769 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, 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, mLoopAccelerationTechnique=QVASR [2022-02-15 04:44:38,770 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 04:44:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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) [2022-02-15 04:44:38,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-02-15 04:44:38,806 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:38,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:44:38,807 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:38,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:38,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1104936065, now seen corresponding path program 1 times [2022-02-15 04:44:38,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:38,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573435495] [2022-02-15 04:44:38,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:38,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:38,893 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:39,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:39,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:39,355 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:39,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573435495] [2022-02-15 04:44:39,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1573435495] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:39,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:39,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:39,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970232802] [2022-02-15 04:44:39,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:39,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:39,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:39,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:39,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:39,391 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 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 9.6) 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) [2022-02-15 04:44:41,433 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 [] [2022-02-15 04:44:42,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:42,145 INFO L93 Difference]: Finished difference Result 324 states and 540 transitions. [2022-02-15 04:44:42,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:42,154 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 [2022-02-15 04:44:42,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:42,162 INFO L225 Difference]: With dead ends: 324 [2022-02-15 04:44:42,162 INFO L226 Difference]: Without dead ends: 165 [2022-02-15 04:44:42,165 INFO L932 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 [2022-02-15 04:44:42,167 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 34 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:42,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-02-15 04:44:42,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-15 04:44:42,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-02-15 04:44:42,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 143 states have internal predecessors, (220), 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) [2022-02-15 04:44:42,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 224 transitions. [2022-02-15 04:44:42,210 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 224 transitions. Word has length 52 [2022-02-15 04:44:42,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:42,210 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 224 transitions. [2022-02-15 04:44:42,210 INFO L471 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) [2022-02-15 04:44:42,211 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 224 transitions. [2022-02-15 04:44:42,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-15 04:44:42,213 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:42,213 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-15 04:44:42,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 04:44:42,213 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:42,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:42,214 INFO L85 PathProgramCache]: Analyzing trace with hash 133985870, now seen corresponding path program 1 times [2022-02-15 04:44:42,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:42,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1446309516] [2022-02-15 04:44:42,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:42,231 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:42,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:42,235 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:42,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:42,448 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:42,448 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1446309516] [2022-02-15 04:44:42,448 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1446309516] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:42,448 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:42,448 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:42,448 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112817798] [2022-02-15 04:44:42,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:42,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:42,449 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:42,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:42,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:42,450 INFO L87 Difference]: Start difference. First operand 148 states and 224 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-02-15 04:44:44,468 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 [] [2022-02-15 04:44:44,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:44,950 INFO L93 Difference]: Finished difference Result 287 states and 431 transitions. [2022-02-15 04:44:44,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:44,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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 65 [2022-02-15 04:44:44,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:44,954 INFO L225 Difference]: With dead ends: 287 [2022-02-15 04:44:44,954 INFO L226 Difference]: Without dead ends: 165 [2022-02-15 04:44:44,955 INFO L932 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 [2022-02-15 04:44:44,956 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:44,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:44:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-15 04:44:44,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-02-15 04:44:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5314685314685315) internal successors, (219), 143 states have internal predecessors, (219), 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) [2022-02-15 04:44:44,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 223 transitions. [2022-02-15 04:44:44,973 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 223 transitions. Word has length 65 [2022-02-15 04:44:44,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:44,973 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 223 transitions. [2022-02-15 04:44:44,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 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) [2022-02-15 04:44:44,973 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 223 transitions. [2022-02-15 04:44:44,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 04:44:44,975 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:44,975 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:44:44,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 04:44:44,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:44,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:44,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1027752574, now seen corresponding path program 1 times [2022-02-15 04:44:44,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:44,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970845433] [2022-02-15 04:44:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:44,991 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:44,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:44,994 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:45,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:45,136 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:45,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970845433] [2022-02-15 04:44:45,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1970845433] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:45,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:45,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:45,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086651951] [2022-02-15 04:44:45,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:45,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:45,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:45,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:45,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:45,138 INFO L87 Difference]: Start difference. First operand 148 states and 223 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-02-15 04:44:47,156 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 [] [2022-02-15 04:44:47,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:47,549 INFO L93 Difference]: Finished difference Result 286 states and 429 transitions. [2022-02-15 04:44:47,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:47,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 66 [2022-02-15 04:44:47,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:47,551 INFO L225 Difference]: With dead ends: 286 [2022-02-15 04:44:47,551 INFO L226 Difference]: Without dead ends: 164 [2022-02-15 04:44:47,552 INFO L932 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 [2022-02-15 04:44:47,553 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:47,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:44:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-02-15 04:44:47,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-02-15 04:44:47,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5244755244755244) internal successors, (218), 143 states have internal predecessors, (218), 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) [2022-02-15 04:44:47,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2022-02-15 04:44:47,565 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 66 [2022-02-15 04:44:47,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:47,565 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2022-02-15 04:44:47,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-02-15 04:44:47,565 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2022-02-15 04:44:47,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 04:44:47,567 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:47,567 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-15 04:44:47,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 04:44:47,568 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:47,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:47,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1865763346, now seen corresponding path program 1 times [2022-02-15 04:44:47,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:47,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571676256] [2022-02-15 04:44:47,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:47,575 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:47,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:47,579 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:47,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:47,752 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:47,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571676256] [2022-02-15 04:44:47,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1571676256] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:47,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:47,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:47,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061373172] [2022-02-15 04:44:47,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:47,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:47,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:47,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:47,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:47,754 INFO L87 Difference]: Start difference. First operand 148 states and 222 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-02-15 04:44:49,768 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 [] [2022-02-15 04:44:50,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:50,316 INFO L93 Difference]: Finished difference Result 384 states and 584 transitions. [2022-02-15 04:44:50,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:50,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 66 [2022-02-15 04:44:50,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:50,318 INFO L225 Difference]: With dead ends: 384 [2022-02-15 04:44:50,318 INFO L226 Difference]: Without dead ends: 262 [2022-02-15 04:44:50,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:44:50,320 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 141 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:50,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:44:50,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-02-15 04:44:50,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 160. [2022-02-15 04:44:50,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5161290322580645) internal successors, (235), 155 states have internal predecessors, (235), 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) [2022-02-15 04:44:50,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 239 transitions. [2022-02-15 04:44:50,341 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 239 transitions. Word has length 66 [2022-02-15 04:44:50,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:50,341 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 239 transitions. [2022-02-15 04:44:50,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-02-15 04:44:50,342 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 239 transitions. [2022-02-15 04:44:50,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 04:44:50,349 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:50,350 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:44:50,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 04:44:50,351 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash -354488375, now seen corresponding path program 1 times [2022-02-15 04:44:50,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:50,351 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25841582] [2022-02-15 04:44:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:50,357 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:50,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:50,364 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:50,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:50,513 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:50,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25841582] [2022-02-15 04:44:50,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [25841582] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:50,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:50,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:50,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426441102] [2022-02-15 04:44:50,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:50,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:50,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:50,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:50,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:50,515 INFO L87 Difference]: Start difference. First operand 160 states and 239 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-02-15 04:44:52,525 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 [] [2022-02-15 04:44:52,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:52,935 INFO L93 Difference]: Finished difference Result 308 states and 461 transitions. [2022-02-15 04:44:52,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:52,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 66 [2022-02-15 04:44:52,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:52,937 INFO L225 Difference]: With dead ends: 308 [2022-02-15 04:44:52,937 INFO L226 Difference]: Without dead ends: 174 [2022-02-15 04:44:52,938 INFO L932 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 [2022-02-15 04:44:52,939 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 20 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:52,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 459 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 344 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:44:52,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-02-15 04:44:52,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 160. [2022-02-15 04:44:52,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5096774193548388) internal successors, (234), 155 states have internal predecessors, (234), 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) [2022-02-15 04:44:52,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 238 transitions. [2022-02-15 04:44:52,952 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 238 transitions. Word has length 66 [2022-02-15 04:44:52,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:52,953 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 238 transitions. [2022-02-15 04:44:52,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-02-15 04:44:52,953 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 238 transitions. [2022-02-15 04:44:52,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-02-15 04:44:52,954 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:52,954 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-15 04:44:52,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 04:44:52,954 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:52,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:52,955 INFO L85 PathProgramCache]: Analyzing trace with hash 146163146, now seen corresponding path program 1 times [2022-02-15 04:44:52,955 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:52,955 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474969883] [2022-02-15 04:44:52,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:52,958 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:52,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:52,961 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:53,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:53,100 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:53,100 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474969883] [2022-02-15 04:44:53,100 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [474969883] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:53,100 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:53,100 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:53,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794683497] [2022-02-15 04:44:53,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:53,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:53,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:53,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:53,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:53,107 INFO L87 Difference]: Start difference. First operand 160 states and 238 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-02-15 04:44:55,116 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 [] [2022-02-15 04:44:55,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:55,507 INFO L93 Difference]: Finished difference Result 307 states and 459 transitions. [2022-02-15 04:44:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:55,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 66 [2022-02-15 04:44:55,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:55,509 INFO L225 Difference]: With dead ends: 307 [2022-02-15 04:44:55,509 INFO L226 Difference]: Without dead ends: 173 [2022-02-15 04:44:55,509 INFO L932 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 [2022-02-15 04:44:55,510 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 18 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:55,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:44:55,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-02-15 04:44:55,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2022-02-15 04:44:55,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 155 states have (on average 1.5032258064516129) internal successors, (233), 155 states have internal predecessors, (233), 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) [2022-02-15 04:44:55,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 237 transitions. [2022-02-15 04:44:55,521 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 237 transitions. Word has length 66 [2022-02-15 04:44:55,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:55,521 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 237 transitions. [2022-02-15 04:44:55,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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) [2022-02-15 04:44:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 237 transitions. [2022-02-15 04:44:55,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-15 04:44:55,522 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:55,522 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-15 04:44:55,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 04:44:55,522 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:55,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash -674199881, now seen corresponding path program 1 times [2022-02-15 04:44:55,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:55,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539978585] [2022-02-15 04:44:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:55,537 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:55,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:55,542 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:55,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:55,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:55,692 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:55,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539978585] [2022-02-15 04:44:55,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1539978585] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:55,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:55,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:55,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189706939] [2022-02-15 04:44:55,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:55,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:55,693 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:55,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:55,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:55,694 INFO L87 Difference]: Start difference. First operand 160 states and 237 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) [2022-02-15 04:44:57,703 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 [] [2022-02-15 04:44:58,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:44:58,245 INFO L93 Difference]: Finished difference Result 396 states and 598 transitions. [2022-02-15 04:44:58,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:44:58,246 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 67 [2022-02-15 04:44:58,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:44:58,247 INFO L225 Difference]: With dead ends: 396 [2022-02-15 04:44:58,247 INFO L226 Difference]: Without dead ends: 262 [2022-02-15 04:44:58,248 INFO L932 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 [2022-02-15 04:44:58,248 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 139 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:44:58,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:44:58,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-02-15 04:44:58,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 161. [2022-02-15 04:44:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 156 states have (on average 1.4935897435897436) internal successors, (233), 156 states have internal predecessors, (233), 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) [2022-02-15 04:44:58,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 237 transitions. [2022-02-15 04:44:58,257 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 237 transitions. Word has length 67 [2022-02-15 04:44:58,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:44:58,257 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 237 transitions. [2022-02-15 04:44:58,258 INFO L471 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) [2022-02-15 04:44:58,258 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 237 transitions. [2022-02-15 04:44:58,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-02-15 04:44:58,258 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:44:58,258 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:44:58,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 04:44:58,259 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:44:58,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:44:58,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2142445385, now seen corresponding path program 1 times [2022-02-15 04:44:58,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:44:58,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [258747412] [2022-02-15 04:44:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:44:58,277 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:44:58,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:44:58,282 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:44:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:58,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:44:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:44:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:44:58,399 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:44:58,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [258747412] [2022-02-15 04:44:58,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [258747412] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:44:58,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:44:58,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:44:58,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666863644] [2022-02-15 04:44:58,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:44:58,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:44:58,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:44:58,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:44:58,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:44:58,401 INFO L87 Difference]: Start difference. First operand 161 states and 237 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) [2022-02-15 04:45:00,412 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 [] [2022-02-15 04:45:00,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:00,917 INFO L93 Difference]: Finished difference Result 397 states and 597 transitions. [2022-02-15 04:45:00,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:00,917 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 68 [2022-02-15 04:45:00,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:00,919 INFO L225 Difference]: With dead ends: 397 [2022-02-15 04:45:00,920 INFO L226 Difference]: Without dead ends: 262 [2022-02-15 04:45:00,920 INFO L932 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 [2022-02-15 04:45:00,921 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 137 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:00,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 312 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:45:00,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-02-15 04:45:00,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 162. [2022-02-15 04:45:00,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.484076433121019) internal successors, (233), 157 states have internal predecessors, (233), 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) [2022-02-15 04:45:00,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 237 transitions. [2022-02-15 04:45:00,929 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 237 transitions. Word has length 68 [2022-02-15 04:45:00,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:00,929 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 237 transitions. [2022-02-15 04:45:00,930 INFO L471 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) [2022-02-15 04:45:00,930 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 237 transitions. [2022-02-15 04:45:00,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 04:45:00,930 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:00,930 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-15 04:45:00,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 04:45:00,931 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:00,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:00,931 INFO L85 PathProgramCache]: Analyzing trace with hash -452212548, now seen corresponding path program 1 times [2022-02-15 04:45:00,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:00,931 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490797107] [2022-02-15 04:45:00,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:00,937 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:00,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:00,948 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:01,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:01,104 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:01,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490797107] [2022-02-15 04:45:01,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [490797107] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:01,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:01,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:01,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350650761] [2022-02-15 04:45:01,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:01,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:01,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:01,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:01,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:01,107 INFO L87 Difference]: Start difference. First operand 162 states and 237 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) [2022-02-15 04:45:02,618 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 [] [2022-02-15 04:45:04,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:45:06,672 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:45:08,698 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 [] [2022-02-15 04:45:09,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:09,046 INFO L93 Difference]: Finished difference Result 301 states and 447 transitions. [2022-02-15 04:45:09,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:09,047 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 69 [2022-02-15 04:45:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:09,048 INFO L225 Difference]: With dead ends: 301 [2022-02-15 04:45:09,048 INFO L226 Difference]: Without dead ends: 165 [2022-02-15 04:45:09,049 INFO L932 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 [2022-02-15 04:45:09,049 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:09,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 329 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-02-15 04:45:09,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-02-15 04:45:09,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 162. [2022-02-15 04:45:09,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 157 states have (on average 1.4777070063694266) internal successors, (232), 157 states have internal predecessors, (232), 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) [2022-02-15 04:45:09,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 236 transitions. [2022-02-15 04:45:09,056 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 236 transitions. Word has length 69 [2022-02-15 04:45:09,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:09,056 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 236 transitions. [2022-02-15 04:45:09,056 INFO L471 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) [2022-02-15 04:45:09,057 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 236 transitions. [2022-02-15 04:45:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 04:45:09,057 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:09,057 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-15 04:45:09,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 04:45:09,058 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:09,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:09,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1752801627, now seen corresponding path program 1 times [2022-02-15 04:45:09,058 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:09,058 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962584218] [2022-02-15 04:45:09,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:09,062 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:09,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:09,067 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:09,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:09,185 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:09,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962584218] [2022-02-15 04:45:09,187 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1962584218] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:09,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:09,188 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:09,188 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768277029] [2022-02-15 04:45:09,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:09,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:09,188 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:09,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:09,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:09,189 INFO L87 Difference]: Start difference. First operand 162 states and 236 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) [2022-02-15 04:45:11,203 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 [] [2022-02-15 04:45:11,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:11,664 INFO L93 Difference]: Finished difference Result 412 states and 615 transitions. [2022-02-15 04:45:11,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:11,665 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 69 [2022-02-15 04:45:11,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:11,667 INFO L225 Difference]: With dead ends: 412 [2022-02-15 04:45:11,667 INFO L226 Difference]: Without dead ends: 276 [2022-02-15 04:45:11,667 INFO L932 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 [2022-02-15 04:45:11,668 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 107 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:11,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 313 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:11,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-02-15 04:45:11,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 205. [2022-02-15 04:45:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 200 states have (on average 1.545) internal successors, (309), 200 states have internal predecessors, (309), 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) [2022-02-15 04:45:11,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 313 transitions. [2022-02-15 04:45:11,677 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 313 transitions. Word has length 69 [2022-02-15 04:45:11,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:11,678 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 313 transitions. [2022-02-15 04:45:11,678 INFO L471 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) [2022-02-15 04:45:11,678 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 313 transitions. [2022-02-15 04:45:11,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-02-15 04:45:11,679 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:11,679 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-02-15 04:45:11,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 04:45:11,679 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:11,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:11,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1490539961, now seen corresponding path program 1 times [2022-02-15 04:45:11,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:11,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537319620] [2022-02-15 04:45:11,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:11,684 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:11,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:11,689 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:11,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:11,810 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:11,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537319620] [2022-02-15 04:45:11,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [537319620] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:11,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:11,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:11,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613213846] [2022-02-15 04:45:11,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:11,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:11,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:11,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:11,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:11,812 INFO L87 Difference]: Start difference. First operand 205 states and 313 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) [2022-02-15 04:45:12,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:45:15,007 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:45:17,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:45:19,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:45:19,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:19,493 INFO L93 Difference]: Finished difference Result 427 states and 659 transitions. [2022-02-15 04:45:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:19,493 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 70 [2022-02-15 04:45:19,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:19,495 INFO L225 Difference]: With dead ends: 427 [2022-02-15 04:45:19,495 INFO L226 Difference]: Without dead ends: 248 [2022-02-15 04:45:19,495 INFO L932 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 [2022-02-15 04:45:19,496 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 31 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:19,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 473 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 385 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-02-15 04:45:19,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-02-15 04:45:19,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 227. [2022-02-15 04:45:19,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 222 states have (on average 1.5495495495495495) internal successors, (344), 222 states have internal predecessors, (344), 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) [2022-02-15 04:45:19,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 348 transitions. [2022-02-15 04:45:19,506 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 348 transitions. Word has length 70 [2022-02-15 04:45:19,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:19,506 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 348 transitions. [2022-02-15 04:45:19,506 INFO L471 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) [2022-02-15 04:45:19,507 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 348 transitions. [2022-02-15 04:45:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-02-15 04:45:19,507 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:19,507 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:19,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 04:45:19,508 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:19,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:19,508 INFO L85 PathProgramCache]: Analyzing trace with hash 308122582, now seen corresponding path program 1 times [2022-02-15 04:45:19,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:19,508 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728585455] [2022-02-15 04:45:19,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:19,520 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:19,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:19,526 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:19,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:19,641 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:19,641 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728585455] [2022-02-15 04:45:19,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [728585455] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:19,641 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:19,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:19,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223811784] [2022-02-15 04:45:19,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:19,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:19,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:19,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:19,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:19,642 INFO L87 Difference]: Start difference. First operand 227 states and 348 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-02-15 04:45:21,652 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 [] [2022-02-15 04:45:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:22,033 INFO L93 Difference]: Finished difference Result 449 states and 693 transitions. [2022-02-15 04:45:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:22,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 83 [2022-02-15 04:45:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:22,035 INFO L225 Difference]: With dead ends: 449 [2022-02-15 04:45:22,035 INFO L226 Difference]: Without dead ends: 248 [2022-02-15 04:45:22,036 INFO L932 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 [2022-02-15 04:45:22,037 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 36 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:22,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 473 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:22,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-02-15 04:45:22,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 227. [2022-02-15 04:45:22,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 222 states have (on average 1.545045045045045) internal successors, (343), 222 states have internal predecessors, (343), 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) [2022-02-15 04:45:22,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 347 transitions. [2022-02-15 04:45:22,046 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 347 transitions. Word has length 83 [2022-02-15 04:45:22,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:22,046 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 347 transitions. [2022-02-15 04:45:22,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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) [2022-02-15 04:45:22,047 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 347 transitions. [2022-02-15 04:45:22,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 04:45:22,047 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:22,048 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:22,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 04:45:22,048 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:22,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:22,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1233411814, now seen corresponding path program 1 times [2022-02-15 04:45:22,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:22,048 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864005607] [2022-02-15 04:45:22,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:22,063 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:22,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:22,068 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:22,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:22,169 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:22,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864005607] [2022-02-15 04:45:22,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [864005607] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:22,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:22,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:22,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125628392] [2022-02-15 04:45:22,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:22,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:22,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:22,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:22,171 INFO L87 Difference]: Start difference. First operand 227 states and 347 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2022-02-15 04:45:24,180 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 [] [2022-02-15 04:45:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:24,572 INFO L93 Difference]: Finished difference Result 457 states and 704 transitions. [2022-02-15 04:45:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:24,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 84 [2022-02-15 04:45:24,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:24,574 INFO L225 Difference]: With dead ends: 457 [2022-02-15 04:45:24,574 INFO L226 Difference]: Without dead ends: 256 [2022-02-15 04:45:24,575 INFO L932 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 [2022-02-15 04:45:24,576 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 19 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:24,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 542 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:24,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-02-15 04:45:24,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 243. [2022-02-15 04:45:24,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 238 states have (on average 1.5378151260504203) internal successors, (366), 238 states have internal predecessors, (366), 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) [2022-02-15 04:45:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 370 transitions. [2022-02-15 04:45:24,586 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 370 transitions. Word has length 84 [2022-02-15 04:45:24,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:24,586 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 370 transitions. [2022-02-15 04:45:24,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2022-02-15 04:45:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 370 transitions. [2022-02-15 04:45:24,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 04:45:24,587 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:24,587 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2022-02-15 04:45:24,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 04:45:24,588 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:24,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:24,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1133208273, now seen corresponding path program 1 times [2022-02-15 04:45:24,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:24,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984656042] [2022-02-15 04:45:24,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:24,619 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:24,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:24,624 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:24,728 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:24,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984656042] [2022-02-15 04:45:24,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1984656042] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:24,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:24,728 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:24,728 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966319910] [2022-02-15 04:45:24,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:24,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:24,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:24,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:24,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:24,729 INFO L87 Difference]: Start difference. First operand 243 states and 370 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) [2022-02-15 04:45:26,738 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 [] [2022-02-15 04:45:27,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:27,146 INFO L93 Difference]: Finished difference Result 479 states and 735 transitions. [2022-02-15 04:45:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:27,146 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 84 [2022-02-15 04:45:27,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:27,148 INFO L225 Difference]: With dead ends: 479 [2022-02-15 04:45:27,148 INFO L226 Difference]: Without dead ends: 262 [2022-02-15 04:45:27,148 INFO L932 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 [2022-02-15 04:45:27,149 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 34 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:27,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 477 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:27,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-02-15 04:45:27,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 243. [2022-02-15 04:45:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 238 states have (on average 1.5336134453781514) internal successors, (365), 238 states have internal predecessors, (365), 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) [2022-02-15 04:45:27,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 369 transitions. [2022-02-15 04:45:27,158 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 369 transitions. Word has length 84 [2022-02-15 04:45:27,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:27,159 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 369 transitions. [2022-02-15 04:45:27,159 INFO L471 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) [2022-02-15 04:45:27,159 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 369 transitions. [2022-02-15 04:45:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-02-15 04:45:27,160 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:27,160 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2022-02-15 04:45:27,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 04:45:27,160 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:27,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1502086990, now seen corresponding path program 1 times [2022-02-15 04:45:27,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:27,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6835273] [2022-02-15 04:45:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:27,168 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:27,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:27,173 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:27,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:27,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:27,267 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:27,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6835273] [2022-02-15 04:45:27,267 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [6835273] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:27,267 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:27,267 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:27,267 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937592232] [2022-02-15 04:45:27,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:27,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:27,268 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:27,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:27,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:27,268 INFO L87 Difference]: Start difference. First operand 243 states and 369 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) [2022-02-15 04:45:29,278 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 [] [2022-02-15 04:45:29,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:29,632 INFO L93 Difference]: Finished difference Result 478 states and 732 transitions. [2022-02-15 04:45:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:29,632 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 84 [2022-02-15 04:45:29,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:29,633 INFO L225 Difference]: With dead ends: 478 [2022-02-15 04:45:29,633 INFO L226 Difference]: Without dead ends: 261 [2022-02-15 04:45:29,634 INFO L932 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 [2022-02-15 04:45:29,635 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 32 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:29,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 479 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:45:29,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-02-15 04:45:29,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 243. [2022-02-15 04:45:29,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 238 states have (on average 1.5294117647058822) internal successors, (364), 238 states have internal predecessors, (364), 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) [2022-02-15 04:45:29,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 368 transitions. [2022-02-15 04:45:29,645 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 368 transitions. Word has length 84 [2022-02-15 04:45:29,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:29,645 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 368 transitions. [2022-02-15 04:45:29,645 INFO L471 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) [2022-02-15 04:45:29,645 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 368 transitions. [2022-02-15 04:45:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 04:45:29,646 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:29,646 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:29,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 04:45:29,646 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:29,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:29,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1487677531, now seen corresponding path program 1 times [2022-02-15 04:45:29,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:29,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970882102] [2022-02-15 04:45:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:29,660 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:29,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:29,665 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:29,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:29,806 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:29,806 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970882102] [2022-02-15 04:45:29,806 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [970882102] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:29,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:29,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 04:45:29,806 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348981685] [2022-02-15 04:45:29,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:29,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 04:45:29,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:29,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 04:45:29,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-15 04:45:29,807 INFO L87 Difference]: Start difference. First operand 243 states and 368 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 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) [2022-02-15 04:45:31,817 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 [] [2022-02-15 04:45:32,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:32,211 INFO L93 Difference]: Finished difference Result 469 states and 718 transitions. [2022-02-15 04:45:32,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 04:45:32,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 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 85 [2022-02-15 04:45:32,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:32,213 INFO L225 Difference]: With dead ends: 469 [2022-02-15 04:45:32,213 INFO L226 Difference]: Without dead ends: 252 [2022-02-15 04:45:32,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-15 04:45:32,214 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:32,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 593 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:32,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-02-15 04:45:32,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2022-02-15 04:45:32,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5182186234817814) internal successors, (375), 247 states have internal predecessors, (375), 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) [2022-02-15 04:45:32,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 379 transitions. [2022-02-15 04:45:32,227 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 379 transitions. Word has length 85 [2022-02-15 04:45:32,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:32,227 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 379 transitions. [2022-02-15 04:45:32,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 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) [2022-02-15 04:45:32,227 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 379 transitions. [2022-02-15 04:45:32,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-02-15 04:45:32,228 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:32,228 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-02-15 04:45:32,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 04:45:32,229 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:32,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:32,229 INFO L85 PathProgramCache]: Analyzing trace with hash -756478377, now seen corresponding path program 1 times [2022-02-15 04:45:32,229 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:32,229 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1758861439] [2022-02-15 04:45:32,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:32,244 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:32,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:32,251 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:32,371 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:32,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1758861439] [2022-02-15 04:45:32,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1758861439] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:32,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:32,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:32,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376937445] [2022-02-15 04:45:32,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:32,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:32,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:32,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:32,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:32,372 INFO L87 Difference]: Start difference. First operand 252 states and 379 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) [2022-02-15 04:45:34,382 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 [] [2022-02-15 04:45:34,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:34,823 INFO L93 Difference]: Finished difference Result 577 states and 879 transitions. [2022-02-15 04:45:34,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:34,824 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 88 [2022-02-15 04:45:34,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:34,825 INFO L225 Difference]: With dead ends: 577 [2022-02-15 04:45:34,826 INFO L226 Difference]: Without dead ends: 351 [2022-02-15 04:45:34,826 INFO L932 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 [2022-02-15 04:45:34,827 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 135 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:34,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 316 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:34,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-02-15 04:45:34,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 253. [2022-02-15 04:45:34,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.5040322580645162) internal successors, (373), 248 states have internal predecessors, (373), 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) [2022-02-15 04:45:34,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 377 transitions. [2022-02-15 04:45:34,841 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 377 transitions. Word has length 88 [2022-02-15 04:45:34,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:34,841 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 377 transitions. [2022-02-15 04:45:34,842 INFO L471 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) [2022-02-15 04:45:34,842 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 377 transitions. [2022-02-15 04:45:34,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 04:45:34,843 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:34,843 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:34,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 04:45:34,843 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:34,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:34,843 INFO L85 PathProgramCache]: Analyzing trace with hash -220711809, now seen corresponding path program 1 times [2022-02-15 04:45:34,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:34,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1667513832] [2022-02-15 04:45:34,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:34,855 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:34,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:34,862 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:34,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:34,979 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:34,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1667513832] [2022-02-15 04:45:34,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1667513832] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:34,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:34,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:34,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038730104] [2022-02-15 04:45:34,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:34,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:34,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:34,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:34,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:34,981 INFO L87 Difference]: Start difference. First operand 253 states and 377 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2022-02-15 04:45:36,990 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 [] [2022-02-15 04:45:37,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:37,549 INFO L93 Difference]: Finished difference Result 575 states and 867 transitions. [2022-02-15 04:45:37,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:37,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 92 [2022-02-15 04:45:37,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:37,550 INFO L225 Difference]: With dead ends: 575 [2022-02-15 04:45:37,551 INFO L226 Difference]: Without dead ends: 348 [2022-02-15 04:45:37,551 INFO L932 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 [2022-02-15 04:45:37,552 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 73 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:37,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 465 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:45:37,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-02-15 04:45:37,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 296. [2022-02-15 04:45:37,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 291 states have (on average 1.5360824742268042) internal successors, (447), 291 states have internal predecessors, (447), 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) [2022-02-15 04:45:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 451 transitions. [2022-02-15 04:45:37,566 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 451 transitions. Word has length 92 [2022-02-15 04:45:37,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:37,566 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 451 transitions. [2022-02-15 04:45:37,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2022-02-15 04:45:37,566 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 451 transitions. [2022-02-15 04:45:37,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-02-15 04:45:37,567 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:37,567 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:37,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 04:45:37,568 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:37,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:37,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2024867645, now seen corresponding path program 1 times [2022-02-15 04:45:37,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:37,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242043416] [2022-02-15 04:45:37,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:37,580 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:37,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:37,586 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:37,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:37,687 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:37,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242043416] [2022-02-15 04:45:37,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1242043416] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:37,687 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:37,687 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:37,687 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339271534] [2022-02-15 04:45:37,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:37,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:37,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:37,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:37,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:37,688 INFO L87 Difference]: Start difference. First operand 296 states and 451 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2022-02-15 04:45:39,699 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 [] [2022-02-15 04:45:40,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:40,147 INFO L93 Difference]: Finished difference Result 614 states and 941 transitions. [2022-02-15 04:45:40,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:40,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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 92 [2022-02-15 04:45:40,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:40,149 INFO L225 Difference]: With dead ends: 614 [2022-02-15 04:45:40,149 INFO L226 Difference]: Without dead ends: 344 [2022-02-15 04:45:40,150 INFO L932 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 [2022-02-15 04:45:40,150 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 35 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:40,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 571 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:40,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-02-15 04:45:40,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 320. [2022-02-15 04:45:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.5396825396825398) internal successors, (485), 315 states have internal predecessors, (485), 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) [2022-02-15 04:45:40,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 489 transitions. [2022-02-15 04:45:40,165 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 489 transitions. Word has length 92 [2022-02-15 04:45:40,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:40,165 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 489 transitions. [2022-02-15 04:45:40,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 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) [2022-02-15 04:45:40,165 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 489 transitions. [2022-02-15 04:45:40,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-02-15 04:45:40,166 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:40,166 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-02-15 04:45:40,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 04:45:40,167 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:40,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:40,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1450897899, now seen corresponding path program 1 times [2022-02-15 04:45:40,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:40,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394971521] [2022-02-15 04:45:40,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:40,189 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:40,208 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:40,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:40,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:40,313 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:40,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394971521] [2022-02-15 04:45:40,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [394971521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:40,315 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:40,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:40,315 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010056894] [2022-02-15 04:45:40,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:40,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:40,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:40,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:40,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:40,316 INFO L87 Difference]: Start difference. First operand 320 states and 489 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) [2022-02-15 04:45:42,331 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 [] [2022-02-15 04:45:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:42,773 INFO L93 Difference]: Finished difference Result 702 states and 1085 transitions. [2022-02-15 04:45:42,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:42,773 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 97 [2022-02-15 04:45:42,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:42,775 INFO L225 Difference]: With dead ends: 702 [2022-02-15 04:45:42,775 INFO L226 Difference]: Without dead ends: 408 [2022-02-15 04:45:42,775 INFO L932 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 [2022-02-15 04:45:42,776 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 132 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:42,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 330 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 448 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:42,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-02-15 04:45:42,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 320. [2022-02-15 04:45:42,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.5206349206349206) internal successors, (479), 315 states have internal predecessors, (479), 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) [2022-02-15 04:45:42,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 483 transitions. [2022-02-15 04:45:42,791 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 483 transitions. Word has length 97 [2022-02-15 04:45:42,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:42,792 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 483 transitions. [2022-02-15 04:45:42,792 INFO L471 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) [2022-02-15 04:45:42,792 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 483 transitions. [2022-02-15 04:45:42,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-02-15 04:45:42,793 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:42,793 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-02-15 04:45:42,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 04:45:42,793 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:42,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:42,794 INFO L85 PathProgramCache]: Analyzing trace with hash -638589232, now seen corresponding path program 1 times [2022-02-15 04:45:42,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:42,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1259423706] [2022-02-15 04:45:42,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:42,814 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:42,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:42,821 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:42,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:42,929 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:42,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1259423706] [2022-02-15 04:45:42,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1259423706] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:42,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:42,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:42,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527512655] [2022-02-15 04:45:42,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:42,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:42,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:42,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:42,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:42,930 INFO L87 Difference]: Start difference. First operand 320 states and 483 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2022-02-15 04:45:44,940 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 [] [2022-02-15 04:45:45,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:45,357 INFO L93 Difference]: Finished difference Result 656 states and 992 transitions. [2022-02-15 04:45:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:45,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 105 [2022-02-15 04:45:45,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:45,373 INFO L225 Difference]: With dead ends: 656 [2022-02-15 04:45:45,373 INFO L226 Difference]: Without dead ends: 362 [2022-02-15 04:45:45,374 INFO L932 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 [2022-02-15 04:45:45,375 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 90 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:45,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 451 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:45,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-02-15 04:45:45,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 320. [2022-02-15 04:45:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 315 states have (on average 1.5174603174603174) internal successors, (478), 315 states have internal predecessors, (478), 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) [2022-02-15 04:45:45,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 482 transitions. [2022-02-15 04:45:45,390 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 482 transitions. Word has length 105 [2022-02-15 04:45:45,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:45,390 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 482 transitions. [2022-02-15 04:45:45,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2022-02-15 04:45:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 482 transitions. [2022-02-15 04:45:45,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-02-15 04:45:45,391 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:45,391 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-02-15 04:45:45,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 04:45:45,392 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:45,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:45,392 INFO L85 PathProgramCache]: Analyzing trace with hash 622328018, now seen corresponding path program 1 times [2022-02-15 04:45:45,392 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:45,392 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393510011] [2022-02-15 04:45:45,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:45,409 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:45,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:45,416 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:45,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:45,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:45,522 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:45,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393510011] [2022-02-15 04:45:45,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1393510011] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:45,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:45,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:45,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136754711] [2022-02-15 04:45:45,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:45,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:45,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:45,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:45,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:45,523 INFO L87 Difference]: Start difference. First operand 320 states and 482 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2022-02-15 04:45:47,532 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 [] [2022-02-15 04:45:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:47,944 INFO L93 Difference]: Finished difference Result 702 states and 1071 transitions. [2022-02-15 04:45:47,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:47,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 105 [2022-02-15 04:45:47,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:47,949 INFO L225 Difference]: With dead ends: 702 [2022-02-15 04:45:47,949 INFO L226 Difference]: Without dead ends: 408 [2022-02-15 04:45:47,950 INFO L932 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 [2022-02-15 04:45:47,950 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 126 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:47,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 330 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:47,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-02-15 04:45:47,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 321. [2022-02-15 04:45:47,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 316 states have (on average 1.509493670886076) internal successors, (477), 316 states have internal predecessors, (477), 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) [2022-02-15 04:45:47,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 481 transitions. [2022-02-15 04:45:47,966 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 481 transitions. Word has length 105 [2022-02-15 04:45:47,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:47,966 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 481 transitions. [2022-02-15 04:45:47,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2022-02-15 04:45:47,966 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 481 transitions. [2022-02-15 04:45:47,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-15 04:45:47,967 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:47,967 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-02-15 04:45:47,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 04:45:47,968 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:47,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:47,968 INFO L85 PathProgramCache]: Analyzing trace with hash -416503435, now seen corresponding path program 1 times [2022-02-15 04:45:47,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:47,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761502189] [2022-02-15 04:45:47,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:47,986 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:47,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:47,992 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:48,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:48,101 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:48,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761502189] [2022-02-15 04:45:48,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1761502189] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:48,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:48,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:48,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980383310] [2022-02-15 04:45:48,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:48,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:48,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:48,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:48,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:48,102 INFO L87 Difference]: Start difference. First operand 321 states and 481 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-02-15 04:45:50,112 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 [] [2022-02-15 04:45:50,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:50,527 INFO L93 Difference]: Finished difference Result 656 states and 986 transitions. [2022-02-15 04:45:50,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:50,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 106 [2022-02-15 04:45:50,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:50,529 INFO L225 Difference]: With dead ends: 656 [2022-02-15 04:45:50,529 INFO L226 Difference]: Without dead ends: 361 [2022-02-15 04:45:50,529 INFO L932 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 [2022-02-15 04:45:50,530 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 88 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:50,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 451 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:50,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-02-15 04:45:50,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 321. [2022-02-15 04:45:50,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 316 states have (on average 1.5063291139240507) internal successors, (476), 316 states have internal predecessors, (476), 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) [2022-02-15 04:45:50,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 480 transitions. [2022-02-15 04:45:50,545 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 480 transitions. Word has length 106 [2022-02-15 04:45:50,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:50,545 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 480 transitions. [2022-02-15 04:45:50,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-02-15 04:45:50,546 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 480 transitions. [2022-02-15 04:45:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-15 04:45:50,547 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:50,547 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-02-15 04:45:50,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 04:45:50,547 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:50,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:50,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2076175468, now seen corresponding path program 1 times [2022-02-15 04:45:50,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:50,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350344300] [2022-02-15 04:45:50,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:50,561 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:50,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:50,568 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:50,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:50,666 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:50,667 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350344300] [2022-02-15 04:45:50,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [350344300] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:50,667 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:50,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:50,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974934001] [2022-02-15 04:45:50,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:50,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:50,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:50,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:50,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:50,668 INFO L87 Difference]: Start difference. First operand 321 states and 480 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-02-15 04:45:52,679 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 [] [2022-02-15 04:45:53,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:53,083 INFO L93 Difference]: Finished difference Result 655 states and 983 transitions. [2022-02-15 04:45:53,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:53,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 106 [2022-02-15 04:45:53,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:53,084 INFO L225 Difference]: With dead ends: 655 [2022-02-15 04:45:53,084 INFO L226 Difference]: Without dead ends: 360 [2022-02-15 04:45:53,085 INFO L932 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 [2022-02-15 04:45:53,086 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 86 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:53,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 453 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:53,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-02-15 04:45:53,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 321. [2022-02-15 04:45:53,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 316 states have (on average 1.5031645569620253) internal successors, (475), 316 states have internal predecessors, (475), 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) [2022-02-15 04:45:53,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 479 transitions. [2022-02-15 04:45:53,100 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 479 transitions. Word has length 106 [2022-02-15 04:45:53,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:53,100 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 479 transitions. [2022-02-15 04:45:53,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-02-15 04:45:53,101 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 479 transitions. [2022-02-15 04:45:53,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-15 04:45:53,102 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:53,102 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-02-15 04:45:53,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 04:45:53,102 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:53,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:53,102 INFO L85 PathProgramCache]: Analyzing trace with hash 17225651, now seen corresponding path program 1 times [2022-02-15 04:45:53,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:53,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505785308] [2022-02-15 04:45:53,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:53,118 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:53,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:53,125 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:53,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:53,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:53,245 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:53,245 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505785308] [2022-02-15 04:45:53,245 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1505785308] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:53,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:53,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:53,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641040686] [2022-02-15 04:45:53,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:53,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:53,246 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:53,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:53,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:53,247 INFO L87 Difference]: Start difference. First operand 321 states and 479 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-02-15 04:45:55,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 04:45:55,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:55,747 INFO L93 Difference]: Finished difference Result 703 states and 1063 transitions. [2022-02-15 04:45:55,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:55,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 106 [2022-02-15 04:45:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:55,749 INFO L225 Difference]: With dead ends: 703 [2022-02-15 04:45:55,749 INFO L226 Difference]: Without dead ends: 408 [2022-02-15 04:45:55,750 INFO L932 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 [2022-02-15 04:45:55,750 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 125 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:55,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 336 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:45:55,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-02-15 04:45:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 322. [2022-02-15 04:45:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.4952681388012619) internal successors, (474), 317 states have internal predecessors, (474), 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) [2022-02-15 04:45:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 478 transitions. [2022-02-15 04:45:55,767 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 478 transitions. Word has length 106 [2022-02-15 04:45:55,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:55,767 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 478 transitions. [2022-02-15 04:45:55,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-02-15 04:45:55,767 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 478 transitions. [2022-02-15 04:45:55,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-15 04:45:55,768 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:55,768 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2022-02-15 04:45:55,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 04:45:55,769 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:55,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:55,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1642446382, now seen corresponding path program 1 times [2022-02-15 04:45:55,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:55,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [264024167] [2022-02-15 04:45:55,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:55,782 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:55,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:55,789 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:55,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:55,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:55,886 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:55,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [264024167] [2022-02-15 04:45:55,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [264024167] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:55,887 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:55,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:55,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779950959] [2022-02-15 04:45:55,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:55,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:55,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:55,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:55,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:55,889 INFO L87 Difference]: Start difference. First operand 322 states and 478 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-02-15 04:45:57,899 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 [] [2022-02-15 04:45:58,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:45:58,334 INFO L93 Difference]: Finished difference Result 703 states and 1058 transitions. [2022-02-15 04:45:58,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:45:58,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 106 [2022-02-15 04:45:58,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:45:58,336 INFO L225 Difference]: With dead ends: 703 [2022-02-15 04:45:58,337 INFO L226 Difference]: Without dead ends: 407 [2022-02-15 04:45:58,337 INFO L932 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 [2022-02-15 04:45:58,338 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 123 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:45:58,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 338 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:45:58,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-02-15 04:45:58,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 323. [2022-02-15 04:45:58,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.4874213836477987) internal successors, (473), 318 states have internal predecessors, (473), 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) [2022-02-15 04:45:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 477 transitions. [2022-02-15 04:45:58,371 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 477 transitions. Word has length 106 [2022-02-15 04:45:58,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:45:58,371 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 477 transitions. [2022-02-15 04:45:58,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-02-15 04:45:58,372 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 477 transitions. [2022-02-15 04:45:58,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-15 04:45:58,373 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:45:58,373 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:45:58,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 04:45:58,373 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:45:58,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:45:58,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1933273423, now seen corresponding path program 1 times [2022-02-15 04:45:58,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:45:58,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518772054] [2022-02-15 04:45:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:45:58,392 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:45:58,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:45:58,400 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:45:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:58,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:45:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:45:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:45:58,503 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:45:58,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518772054] [2022-02-15 04:45:58,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [518772054] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:45:58,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:45:58,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 04:45:58,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834154303] [2022-02-15 04:45:58,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:45:58,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 04:45:58,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:45:58,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 04:45:58,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-15 04:45:58,505 INFO L87 Difference]: Start difference. First operand 323 states and 477 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2022-02-15 04:46:00,515 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 [] [2022-02-15 04:46:00,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:46:00,952 INFO L93 Difference]: Finished difference Result 704 states and 1054 transitions. [2022-02-15 04:46:00,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 04:46:00,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 114 [2022-02-15 04:46:00,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:46:00,955 INFO L225 Difference]: With dead ends: 704 [2022-02-15 04:46:00,955 INFO L226 Difference]: Without dead ends: 407 [2022-02-15 04:46:00,955 INFO L932 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 [2022-02-15 04:46:00,956 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 116 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 51 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:46:00,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 348 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 04:46:00,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-02-15 04:46:00,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 329. [2022-02-15 04:46:00,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 324 states have (on average 1.4876543209876543) internal successors, (482), 324 states have internal predecessors, (482), 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) [2022-02-15 04:46:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 486 transitions. [2022-02-15 04:46:00,973 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 486 transitions. Word has length 114 [2022-02-15 04:46:00,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:46:00,973 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 486 transitions. [2022-02-15 04:46:00,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2022-02-15 04:46:00,974 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 486 transitions. [2022-02-15 04:46:00,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-15 04:46:00,975 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:46:00,975 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:46:00,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 04:46:00,975 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:46:00,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:46:00,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1629726447, now seen corresponding path program 1 times [2022-02-15 04:46:00,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:46:00,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284252222] [2022-02-15 04:46:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:46:00,995 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:46:00,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:46:01,003 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:46:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:01,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:46:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:46:01,124 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:46:01,124 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284252222] [2022-02-15 04:46:01,124 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [284252222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:46:01,124 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:46:01,124 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:46:01,125 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488395473] [2022-02-15 04:46:01,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:46:01,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:46:01,125 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:46:01,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:46:01,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:46:01,125 INFO L87 Difference]: Start difference. First operand 329 states and 486 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:03,134 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 [] [2022-02-15 04:46:03,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:46:03,421 INFO L93 Difference]: Finished difference Result 907 states and 1361 transitions. [2022-02-15 04:46:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:46:03,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-02-15 04:46:03,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:46:03,423 INFO L225 Difference]: With dead ends: 907 [2022-02-15 04:46:03,424 INFO L226 Difference]: Without dead ends: 604 [2022-02-15 04:46:03,424 INFO L932 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 [2022-02-15 04:46:03,425 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 130 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:46:03,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 426 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 252 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:46:03,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2022-02-15 04:46:03,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2022-02-15 04:46:03,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 599 states have (on average 1.4958263772954925) internal successors, (896), 599 states have internal predecessors, (896), 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) [2022-02-15 04:46:03,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 900 transitions. [2022-02-15 04:46:03,456 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 900 transitions. Word has length 114 [2022-02-15 04:46:03,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:46:03,456 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 900 transitions. [2022-02-15 04:46:03,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:03,457 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 900 transitions. [2022-02-15 04:46:03,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-15 04:46:03,458 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:46:03,458 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:46:03,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 04:46:03,459 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:46:03,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:46:03,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1711300691, now seen corresponding path program 1 times [2022-02-15 04:46:03,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:46:03,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858573415] [2022-02-15 04:46:03,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:46:03,479 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:46:03,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:46:03,486 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:46:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:03,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:46:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:46:03,573 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:46:03,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858573415] [2022-02-15 04:46:03,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [858573415] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:46:03,573 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:46:03,573 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:46:03,573 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048938005] [2022-02-15 04:46:03,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:46:03,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:46:03,575 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:46:03,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:46:03,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:46:03,575 INFO L87 Difference]: Start difference. First operand 604 states and 900 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-02-15 04:46:05,591 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 [] [2022-02-15 04:46:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:46:05,854 INFO L93 Difference]: Finished difference Result 1209 states and 1807 transitions. [2022-02-15 04:46:05,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:46:05,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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 114 [2022-02-15 04:46:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:46:05,857 INFO L225 Difference]: With dead ends: 1209 [2022-02-15 04:46:05,857 INFO L226 Difference]: Without dead ends: 631 [2022-02-15 04:46:05,858 INFO L932 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 [2022-02-15 04:46:05,858 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-02-15 04:46:05,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 407 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-02-15 04:46:05,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2022-02-15 04:46:05,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2022-02-15 04:46:05,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 626 states have (on average 1.487220447284345) internal successors, (931), 626 states have internal predecessors, (931), 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) [2022-02-15 04:46:05,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 935 transitions. [2022-02-15 04:46:05,909 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 935 transitions. Word has length 114 [2022-02-15 04:46:05,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:46:05,910 INFO L470 AbstractCegarLoop]: Abstraction has 631 states and 935 transitions. [2022-02-15 04:46:05,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-02-15 04:46:05,910 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 935 transitions. [2022-02-15 04:46:05,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-02-15 04:46:05,912 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:46:05,912 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:46:05,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 04:46:05,912 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:46:05,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:46:05,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1588972907, now seen corresponding path program 1 times [2022-02-15 04:46:05,913 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:46:05,913 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [817100449] [2022-02-15 04:46:05,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:46:05,931 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:46:05,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:46:05,940 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:46:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:06,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:46:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:46:06,049 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:46:06,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [817100449] [2022-02-15 04:46:06,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [817100449] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:46:06,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:46:06,049 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 04:46:06,049 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826895925] [2022-02-15 04:46:06,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:46:06,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 04:46:06,050 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:46:06,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 04:46:06,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 04:46:06,050 INFO L87 Difference]: Start difference. First operand 631 states and 935 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:08,067 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 [] [2022-02-15 04:46:08,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:46:08,349 INFO L93 Difference]: Finished difference Result 1238 states and 1843 transitions. [2022-02-15 04:46:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 04:46:08,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-02-15 04:46:08,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:46:08,352 INFO L225 Difference]: With dead ends: 1238 [2022-02-15 04:46:08,352 INFO L226 Difference]: Without dead ends: 633 [2022-02-15 04:46:08,353 INFO L932 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 [2022-02-15 04:46:08,353 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 04:46:08,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 386 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 04:46:08,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-02-15 04:46:08,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2022-02-15 04:46:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 628 states have (on average 1.4856687898089171) internal successors, (933), 628 states have internal predecessors, (933), 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) [2022-02-15 04:46:08,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 937 transitions. [2022-02-15 04:46:08,385 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 937 transitions. Word has length 114 [2022-02-15 04:46:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:46:08,385 INFO L470 AbstractCegarLoop]: Abstraction has 633 states and 937 transitions. [2022-02-15 04:46:08,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 04:46:08,386 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 937 transitions. [2022-02-15 04:46:08,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 04:46:08,387 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:46:08,387 INFO L514 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, 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] [2022-02-15 04:46:08,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 04:46:08,387 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:46:08,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:46:08,388 INFO L85 PathProgramCache]: Analyzing trace with hash 977330790, now seen corresponding path program 1 times [2022-02-15 04:46:08,388 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:46:08,388 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421560897] [2022-02-15 04:46:08,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:46:08,418 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:46:08,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:46:08,428 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:46:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:08,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:46:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:46:08,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 04:46:08,903 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:46:08,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421560897] [2022-02-15 04:46:08,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1421560897] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:46:08,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:46:08,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 04:46:08,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729511412] [2022-02-15 04:46:08,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:46:08,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 04:46:08,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:46:08,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 04:46:08,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-15 04:46:08,904 INFO L87 Difference]: Start difference. First operand 633 states and 937 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 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) [2022-02-15 04:46:10,915 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 [] [2022-02-15 04:46:11,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:46:11,466 INFO L93 Difference]: Finished difference Result 1259 states and 1866 transitions. [2022-02-15 04:46:11,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 04:46:11,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 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) Word has length 132 [2022-02-15 04:46:11,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:46:11,470 INFO L225 Difference]: With dead ends: 1259 [2022-02-15 04:46:11,470 INFO L226 Difference]: Without dead ends: 633 [2022-02-15 04:46:11,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 04:46:11,471 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 593 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:46:11,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 792 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 04:46:11,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-02-15 04:46:11,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2022-02-15 04:46:11,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 628 states have (on average 1.484076433121019) internal successors, (932), 628 states have internal predecessors, (932), 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) [2022-02-15 04:46:11,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 936 transitions. [2022-02-15 04:46:11,516 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 936 transitions. Word has length 132 [2022-02-15 04:46:11,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:46:11,516 INFO L470 AbstractCegarLoop]: Abstraction has 633 states and 936 transitions. [2022-02-15 04:46:11,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 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) [2022-02-15 04:46:11,516 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 936 transitions. [2022-02-15 04:46:11,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-02-15 04:46:11,518 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:46:11,518 INFO L514 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, 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] [2022-02-15 04:46:11,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 04:46:11,518 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:46:11,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:46:11,519 INFO L85 PathProgramCache]: Analyzing trace with hash 547672484, now seen corresponding path program 1 times [2022-02-15 04:46:11,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:46:11,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674542229] [2022-02-15 04:46:11,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:46:11,547 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:46:11,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:46:11,558 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:46:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 04:46:12,166 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-15 04:46:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-15 04:46:12,492 INFO L138 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-15 04:46:12,493 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-15 04:46:12,502 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 04:46:12,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 04:46:12,506 INFO L732 BasicCegarLoop]: Path program 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] [2022-02-15 04:46:12,509 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 04:46:12,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 04:46:12 BoogieIcfgContainer [2022-02-15 04:46:12,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 04:46:12,554 INFO L158 Benchmark]: Toolchain (without parser) took 97646.09ms. Allocated memory was 187.7MB in the beginning and 298.8MB in the end (delta: 111.1MB). Free memory was 129.7MB in the beginning and 216.8MB in the end (delta: -87.2MB). Peak memory consumption was 160.1MB. Max. memory is 8.0GB. [2022-02-15 04:46:12,554 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 04:46:12,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.65ms. Allocated memory was 187.7MB in the beginning and 298.8MB in the end (delta: 111.1MB). Free memory was 129.4MB in the beginning and 248.7MB in the end (delta: -119.3MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. [2022-02-15 04:46:12,558 INFO L158 Benchmark]: Boogie Preprocessor took 143.22ms. Allocated memory is still 298.8MB. Free memory was 248.7MB in the beginning and 240.8MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-02-15 04:46:12,559 INFO L158 Benchmark]: RCFGBuilder took 3135.73ms. Allocated memory is still 298.8MB. Free memory was 240.8MB in the beginning and 160.6MB in the end (delta: 80.2MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. [2022-02-15 04:46:12,559 INFO L158 Benchmark]: TraceAbstraction took 93850.54ms. Allocated memory is still 298.8MB. Free memory was 160.1MB in the beginning and 216.8MB in the end (delta: -56.7MB). Peak memory consumption was 80.1MB. Max. memory is 8.0GB. [2022-02-15 04:46:12,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 506.65ms. Allocated memory was 187.7MB in the beginning and 298.8MB in the end (delta: 111.1MB). Free memory was 129.4MB in the beginning and 248.7MB in the end (delta: -119.3MB). Peak memory consumption was 12.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 143.22ms. Allocated memory is still 298.8MB. Free memory was 248.7MB in the beginning and 240.8MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 3135.73ms. Allocated memory is still 298.8MB. Free memory was 240.8MB in the beginning and 160.6MB in the end (delta: 80.2MB). Peak memory consumption was 80.7MB. Max. memory is 8.0GB. * TraceAbstraction took 93850.54ms. Allocated memory is still 298.8MB. Free memory was 160.1MB in the beginning and 216.8MB in the end (delta: -56.7MB). Peak memory consumption was 80.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1734]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1152. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf ; [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 = __VERIFIER_nondet_int() ; [L1126] int tmp___4 = __VERIFIER_nondet_int() ; [L1127] int tmp___5 = __VERIFIER_nondet_int() ; [L1128] int tmp___6 = __VERIFIER_nondet_int() ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 = __VERIFIER_nondet_int() ; [L1132] int tmp___10 = __VERIFIER_nondet_int() ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1693] EXPR s->s3 [L1693] EXPR (s->s3)->tmp.reuse_message [L1693] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1722] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND TRUE s->hit [L1384] s->state = 8656 [L1388] s->init_num = 0 [L1693] EXPR s->s3 [L1693] EXPR (s->s3)->tmp.reuse_message [L1693] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1722] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND TRUE s->state == 8656 [L1586] EXPR s->session [L1586] EXPR s->s3 [L1586] EXPR (s->s3)->tmp.new_cipher [L1586] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1587] COND FALSE !(! tmp___9) [L1593] ret = __VERIFIER_nondet_int() [L1594] COND TRUE blastFlag == 2 [L1595] blastFlag = 3 [L1599] COND FALSE !(ret <= 0) [L1604] s->state = 8672 [L1605] s->init_num = 0 [L1606] COND FALSE !(! tmp___10) [L1693] EXPR s->s3 [L1693] EXPR (s->s3)->tmp.reuse_message [L1693] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1722] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND FALSE !(s->state == 8656) [L1263] EXPR s->state [L1263] COND FALSE !(s->state == 8657) [L1266] EXPR s->state [L1266] COND TRUE s->state == 8672 [L1615] ret = __VERIFIER_nondet_int() [L1616] COND TRUE blastFlag == 3 [L1734] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 184 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 93.7s, OverallIterations: 32, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 86.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 35 mSolverCounterUnknown, 2099 SdHoareTripleChecker+Valid, 85.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2099 mSDsluCounter, 13566 SdHoareTripleChecker+Invalid, 82.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8372 mSDsCounter, 769 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12563 IncrementalHoareTripleChecker+Invalid, 13367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 769 mSolverCounterUnsat, 5194 mSDtfsCounter, 12563 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=633occurred in iteration=30, InterpolantAutomatonStates: 156, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 1264 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-15 04:46:12,601 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...