/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 13:51:23,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 13:51:23,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 13:51:23,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 13:51:23,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 13:51:23,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 13:51:23,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 13:51:23,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 13:51:23,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 13:51:23,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 13:51:23,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 13:51:23,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 13:51:23,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 13:51:23,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 13:51:23,469 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 13:51:23,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 13:51:23,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 13:51:23,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 13:51:23,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 13:51:23,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 13:51:23,478 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 13:51:23,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 13:51:23,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 13:51:23,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 13:51:23,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 13:51:23,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-19 13:51:23,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 13:51:23,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 13:51:23,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 13:51:23,489 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-19 13:51:23,496 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 13:51:23,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 13:51:23,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 13:51:23,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 13:51:23,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 13:51:23,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 13:51:23,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 13:51:23,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 13:51:23,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 13:51:23,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 13:51:23,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 13:51:23,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 13:51:23,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 13:51:23,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 13:51:23,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 13:51:23,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:51:23,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 13:51:23,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 13:51:23,500 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 13:51:23,500 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 13:51:23,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 13:51:23,500 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-19 13:51:23,500 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 13:51:23,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 13:51:23,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 13:51:23,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 13:51:23,676 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 13:51:23,677 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 13:51:23,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-03-19 13:51:23,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17ac75ded/12f81523d36b4b0f916fbabdde135bbc/FLAG4f6bbd98e [2022-03-19 13:51:24,159 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 13:51:24,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c [2022-03-19 13:51:24,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17ac75ded/12f81523d36b4b0f916fbabdde135bbc/FLAG4f6bbd98e [2022-03-19 13:51:24,179 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17ac75ded/12f81523d36b4b0f916fbabdde135bbc [2022-03-19 13:51:24,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 13:51:24,181 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 13:51:24,182 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 13:51:24,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 13:51:24,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 13:51:24,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf3ebaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24, skipping insertion in model container [2022-03-19 13:51:24,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 13:51:24,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 13:51:24,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c[77378,77391] [2022-03-19 13:51:24,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:51:24,529 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 13:51:24,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.16.i.cil-1.c[77378,77391] [2022-03-19 13:51:24,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:51:24,613 INFO L208 MainTranslator]: Completed translation [2022-03-19 13:51:24,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24 WrapperNode [2022-03-19 13:51:24,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 13:51:24,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 13:51:24,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 13:51:24,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 13:51:24,621 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 13:51:24,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 13:51:24,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 13:51:24,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 13:51:24,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24" (1/1) ... [2022-03-19 13:51:24,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:51:24,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:51:24,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 13:51:24,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 13:51:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 13:51:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 13:51:24,742 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 13:51:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-19 13:51:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-19 13:51:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 13:51:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 13:51:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 13:51:24,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 13:51:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 13:51:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 13:51:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 13:51:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 13:51:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 13:51:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 13:51:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 13:51:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 13:51:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 13:51:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 13:51:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 13:51:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-19 13:51:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 13:51:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 13:51:24,746 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 13:51:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 13:51:24,915 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 13:51:24,916 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 13:51:25,798 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 13:51:26,156 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-19 13:51:26,157 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-19 13:51:26,166 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 13:51:26,172 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 13:51:26,172 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 13:51:26,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:26 BoogieIcfgContainer [2022-03-19 13:51:26,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 13:51:26,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 13:51:26,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 13:51:26,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 13:51:26,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 01:51:24" (1/3) ... [2022-03-19 13:51:26,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a7a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:51:26, skipping insertion in model container [2022-03-19 13:51:26,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:51:24" (2/3) ... [2022-03-19 13:51:26,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63a7a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:51:26, skipping insertion in model container [2022-03-19 13:51:26,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:51:26" (3/3) ... [2022-03-19 13:51:26,178 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.16.i.cil-1.c [2022-03-19 13:51:26,181 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 13:51:26,182 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 13:51:26,208 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 13:51:26,212 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 13:51:26,212 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 13:51:26,223 INFO L276 IsEmpty]: Start isEmpty. Operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 13:51:26,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-19 13:51:26,231 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:51:26,231 INFO L500 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] [2022-03-19 13:51:26,231 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:51:26,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:51:26,235 INFO L85 PathProgramCache]: Analyzing trace with hash -313091541, now seen corresponding path program 1 times [2022-03-19 13:51:26,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:26,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1787453166] [2022-03-19 13:51:26,247 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:51:26,247 INFO L85 PathProgramCache]: Analyzing trace with hash -313091541, now seen corresponding path program 2 times [2022-03-19 13:51:26,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:51:26,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932049171] [2022-03-19 13:51:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:51:26,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:51:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:26,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:51:26,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:26,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:51:26,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:51:26,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932049171] [2022-03-19 13:51:26,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932049171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:26,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:26,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:26,568 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:51:26,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1787453166] [2022-03-19 13:51:26,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1787453166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:26,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:26,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:26,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653305881] [2022-03-19 13:51:26,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:51:26,572 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:51:26,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:26,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:51:26,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:51:26,589 INFO L87 Difference]: Start difference. First operand has 166 states, 158 states have (on average 1.7215189873417722) internal successors, (272), 159 states have internal predecessors, (272), 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 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:28,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:30,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:32,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:32,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:51:32,822 INFO L93 Difference]: Finished difference Result 453 states and 772 transitions. [2022-03-19 13:51:32,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:51:32,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 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 50 [2022-03-19 13:51:32,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:51:32,831 INFO L225 Difference]: With dead ends: 453 [2022-03-19 13:51:32,831 INFO L226 Difference]: Without dead ends: 276 [2022-03-19 13:51:32,834 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:51:32,836 INFO L912 BasicCegarLoop]: 174 mSDtfsCounter, 168 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:51:32,836 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 511 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 551 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 13:51:32,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-03-19 13:51:32,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 190. [2022-03-19 13:51:32,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 185 states have (on average 1.6216216216216217) internal successors, (300), 185 states have internal predecessors, (300), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:32,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 304 transitions. [2022-03-19 13:51:32,892 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 304 transitions. Word has length 50 [2022-03-19 13:51:32,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:51:32,893 INFO L478 AbstractCegarLoop]: Abstraction has 190 states and 304 transitions. [2022-03-19 13:51:32,893 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 304 transitions. [2022-03-19 13:51:32,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-03-19 13:51:32,896 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:51:32,897 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:51:32,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 13:51:32,897 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:51:32,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:51:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash 25677003, now seen corresponding path program 1 times [2022-03-19 13:51:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:32,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1275305926] [2022-03-19 13:51:32,898 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:51:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash 25677003, now seen corresponding path program 2 times [2022-03-19 13:51:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:51:32,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349412636] [2022-03-19 13:51:32,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:51:32,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:51:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:33,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:51:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:51:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:51:33,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349412636] [2022-03-19 13:51:33,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349412636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:33,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:33,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:33,033 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:51:33,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1275305926] [2022-03-19 13:51:33,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1275305926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:33,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:33,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:33,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619833551] [2022-03-19 13:51:33,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:51:33,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:51:33,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:33,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:51:33,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:51:33,035 INFO L87 Difference]: Start difference. First operand 190 states and 304 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:34,659 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:36,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:38,634 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:40,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:41,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:51:41,168 INFO L93 Difference]: Finished difference Result 490 states and 787 transitions. [2022-03-19 13:51:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:51:41,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-03-19 13:51:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:51:41,171 INFO L225 Difference]: With dead ends: 490 [2022-03-19 13:51:41,171 INFO L226 Difference]: Without dead ends: 315 [2022-03-19 13:51:41,172 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:51:41,173 INFO L912 BasicCegarLoop]: 145 mSDtfsCounter, 135 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:51:41,173 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 414 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 503 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-03-19 13:51:41,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-19 13:51:41,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 230. [2022-03-19 13:51:41,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 225 states have (on average 1.6622222222222223) internal successors, (374), 225 states have internal predecessors, (374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 378 transitions. [2022-03-19 13:51:41,190 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 378 transitions. Word has length 51 [2022-03-19 13:51:41,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:51:41,190 INFO L478 AbstractCegarLoop]: Abstraction has 230 states and 378 transitions. [2022-03-19 13:51:41,190 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:41,190 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 378 transitions. [2022-03-19 13:51:41,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-03-19 13:51:41,192 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:51:41,192 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:51:41,192 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 13:51:41,193 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:51:41,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:51:41,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1438172610, now seen corresponding path program 1 times [2022-03-19 13:51:41,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:41,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1098964910] [2022-03-19 13:51:41,206 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:51:41,206 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:51:41,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1438172610, now seen corresponding path program 2 times [2022-03-19 13:51:41,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:51:41,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816188092] [2022-03-19 13:51:41,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:51:41,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:51:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:41,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:51:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:41,425 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-19 13:51:41,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:51:41,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816188092] [2022-03-19 13:51:41,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816188092] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:41,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:41,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:41,426 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:51:41,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1098964910] [2022-03-19 13:51:41,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1098964910] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:41,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:41,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:41,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083390973] [2022-03-19 13:51:41,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:51:41,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:51:41,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:41,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:51:41,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:51:41,428 INFO L87 Difference]: Start difference. First operand 230 states and 378 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:43,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:44,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:46,846 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:48,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:49,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:51:49,229 INFO L93 Difference]: Finished difference Result 473 states and 778 transitions. [2022-03-19 13:51:49,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:51:49,230 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 79 [2022-03-19 13:51:49,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:51:49,231 INFO L225 Difference]: With dead ends: 473 [2022-03-19 13:51:49,231 INFO L226 Difference]: Without dead ends: 258 [2022-03-19 13:51:49,232 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:51:49,233 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 22 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-03-19 13:51:49,233 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 529 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2022-03-19 13:51:49,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-19 13:51:49,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 241. [2022-03-19 13:51:49,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.6652542372881356) internal successors, (393), 236 states have internal predecessors, (393), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:49,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 397 transitions. [2022-03-19 13:51:49,245 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 397 transitions. Word has length 79 [2022-03-19 13:51:49,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:51:49,245 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 397 transitions. [2022-03-19 13:51:49,245 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:49,245 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 397 transitions. [2022-03-19 13:51:49,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-19 13:51:49,247 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:51:49,248 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:51:49,248 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 13:51:49,248 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:51:49,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:51:49,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1522485062, now seen corresponding path program 1 times [2022-03-19 13:51:49,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:49,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1962411633] [2022-03-19 13:51:49,257 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:51:49,257 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:51:49,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1522485062, now seen corresponding path program 2 times [2022-03-19 13:51:49,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:51:49,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733835464] [2022-03-19 13:51:49,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:51:49,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:51:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:49,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:51:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:51:49,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:51:49,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733835464] [2022-03-19 13:51:49,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733835464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:49,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:49,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:49,425 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:51:49,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1962411633] [2022-03-19 13:51:49,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1962411633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:49,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:49,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:49,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879525768] [2022-03-19 13:51:49,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:51:49,426 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:51:49,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:49,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:51:49,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:51:49,426 INFO L87 Difference]: Start difference. First operand 241 states and 397 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) [2022-03-19 13:51:50,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:52,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:54,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:56,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:51:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:51:56,524 INFO L93 Difference]: Finished difference Result 473 states and 777 transitions. [2022-03-19 13:51:56,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:51:56,525 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 92 [2022-03-19 13:51:56,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:51:56,526 INFO L225 Difference]: With dead ends: 473 [2022-03-19 13:51:56,526 INFO L226 Difference]: Without dead ends: 258 [2022-03-19 13:51:56,527 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:51:56,529 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 24 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:51:56,530 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 531 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-03-19 13:51:56,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-03-19 13:51:56,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 241. [2022-03-19 13:51:56,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.6610169491525424) internal successors, (392), 236 states have internal predecessors, (392), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:56,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 396 transitions. [2022-03-19 13:51:56,539 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 396 transitions. Word has length 92 [2022-03-19 13:51:56,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:51:56,539 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 396 transitions. [2022-03-19 13:51:56,540 INFO L479 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) [2022-03-19 13:51:56,540 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 396 transitions. [2022-03-19 13:51:56,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-19 13:51:56,541 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:51:56,542 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:51:56,542 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 13:51:56,542 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:51:56,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:51:56,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1780482602, now seen corresponding path program 1 times [2022-03-19 13:51:56,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:56,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [883225215] [2022-03-19 13:51:56,564 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:51:56,564 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:51:56,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1780482602, now seen corresponding path program 2 times [2022-03-19 13:51:56,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:51:56,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785883460] [2022-03-19 13:51:56,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:51:56,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:51:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:51:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:51:56,717 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:51:56,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:51:56,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785883460] [2022-03-19 13:51:56,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785883460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:56,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:56,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:56,718 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:51:56,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [883225215] [2022-03-19 13:51:56,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [883225215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:51:56,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:51:56,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:51:56,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160607998] [2022-03-19 13:51:56,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:51:56,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:51:56,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:51:56,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:51:56,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:51:56,719 INFO L87 Difference]: Start difference. First operand 241 states and 396 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:51:58,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:00,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:03,102 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:03,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:03,664 INFO L93 Difference]: Finished difference Result 540 states and 877 transitions. [2022-03-19 13:52:03,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:03,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-03-19 13:52:03,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:03,668 INFO L225 Difference]: With dead ends: 540 [2022-03-19 13:52:03,668 INFO L226 Difference]: Without dead ends: 325 [2022-03-19 13:52:03,669 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:03,671 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 163 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:03,671 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 416 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 501 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 13:52:03,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-19 13:52:03,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 241. [2022-03-19 13:52:03,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.6483050847457628) internal successors, (389), 236 states have internal predecessors, (389), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 393 transitions. [2022-03-19 13:52:03,699 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 393 transitions. Word has length 93 [2022-03-19 13:52:03,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:03,699 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 393 transitions. [2022-03-19 13:52:03,699 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:03,699 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 393 transitions. [2022-03-19 13:52:03,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-19 13:52:03,701 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:03,701 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:03,701 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 13:52:03,702 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:03,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:03,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1273439806, now seen corresponding path program 1 times [2022-03-19 13:52:03,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:03,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [306674446] [2022-03-19 13:52:03,718 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:03,718 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:03,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1273439806, now seen corresponding path program 2 times [2022-03-19 13:52:03,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:03,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414348671] [2022-03-19 13:52:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:03,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:03,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:03,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:52:03,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:03,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414348671] [2022-03-19 13:52:03,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414348671] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:03,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:03,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:03,811 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:03,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [306674446] [2022-03-19 13:52:03,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [306674446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:03,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:03,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:03,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084891889] [2022-03-19 13:52:03,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:03,812 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:03,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:03,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:03,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:03,813 INFO L87 Difference]: Start difference. First operand 241 states and 393 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:06,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:07,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:07,929 INFO L93 Difference]: Finished difference Result 472 states and 770 transitions. [2022-03-19 13:52:07,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:07,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-03-19 13:52:07,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:07,942 INFO L225 Difference]: With dead ends: 472 [2022-03-19 13:52:07,942 INFO L226 Difference]: Without dead ends: 257 [2022-03-19 13:52:07,942 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:07,943 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 26 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:07,943 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 533 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-03-19 13:52:07,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-03-19 13:52:07,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 241. [2022-03-19 13:52:07,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.6440677966101696) internal successors, (388), 236 states have internal predecessors, (388), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 392 transitions. [2022-03-19 13:52:07,953 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 392 transitions. Word has length 93 [2022-03-19 13:52:07,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:07,953 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 392 transitions. [2022-03-19 13:52:07,953 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:07,953 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 392 transitions. [2022-03-19 13:52:07,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-19 13:52:07,954 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:07,954 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:07,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 13:52:07,954 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:07,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:07,955 INFO L85 PathProgramCache]: Analyzing trace with hash 368859563, now seen corresponding path program 1 times [2022-03-19 13:52:07,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:07,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [377607423] [2022-03-19 13:52:07,962 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:07,962 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:07,962 INFO L85 PathProgramCache]: Analyzing trace with hash 368859563, now seen corresponding path program 2 times [2022-03-19 13:52:07,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:07,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678757481] [2022-03-19 13:52:07,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:07,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:08,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:52:08,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:08,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678757481] [2022-03-19 13:52:08,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678757481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:08,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:08,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:08,056 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:08,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [377607423] [2022-03-19 13:52:08,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [377607423] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:08,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:08,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:08,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841173923] [2022-03-19 13:52:08,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:08,056 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:08,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:08,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:08,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:08,057 INFO L87 Difference]: Start difference. First operand 241 states and 392 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:09,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:11,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:13,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:14,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:14,126 INFO L93 Difference]: Finished difference Result 470 states and 767 transitions. [2022-03-19 13:52:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:14,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-03-19 13:52:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:14,127 INFO L225 Difference]: With dead ends: 470 [2022-03-19 13:52:14,127 INFO L226 Difference]: Without dead ends: 255 [2022-03-19 13:52:14,128 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:14,128 INFO L912 BasicCegarLoop]: 206 mSDtfsCounter, 20 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:14,129 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 537 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 372 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-19 13:52:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-03-19 13:52:14,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 241. [2022-03-19 13:52:14,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.6398305084745763) internal successors, (387), 236 states have internal predecessors, (387), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:14,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 391 transitions. [2022-03-19 13:52:14,136 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 391 transitions. Word has length 93 [2022-03-19 13:52:14,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:14,136 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 391 transitions. [2022-03-19 13:52:14,136 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:14,136 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 391 transitions. [2022-03-19 13:52:14,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-19 13:52:14,137 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:14,137 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:14,137 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 13:52:14,137 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:14,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:14,138 INFO L85 PathProgramCache]: Analyzing trace with hash 856705802, now seen corresponding path program 1 times [2022-03-19 13:52:14,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:14,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1161004580] [2022-03-19 13:52:14,143 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:14,143 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:14,143 INFO L85 PathProgramCache]: Analyzing trace with hash 856705802, now seen corresponding path program 2 times [2022-03-19 13:52:14,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:14,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783305388] [2022-03-19 13:52:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:14,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:14,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:14,218 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:52:14,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:14,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783305388] [2022-03-19 13:52:14,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783305388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:14,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:14,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:14,219 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:14,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1161004580] [2022-03-19 13:52:14,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1161004580] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:14,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:14,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:14,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126582803] [2022-03-19 13:52:14,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:14,220 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:14,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:14,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:14,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:14,220 INFO L87 Difference]: Start difference. First operand 241 states and 391 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:15,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:17,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:19,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:20,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:20,966 INFO L93 Difference]: Finished difference Result 469 states and 765 transitions. [2022-03-19 13:52:20,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:20,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-03-19 13:52:20,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:20,968 INFO L225 Difference]: With dead ends: 469 [2022-03-19 13:52:20,968 INFO L226 Difference]: Without dead ends: 254 [2022-03-19 13:52:20,969 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:20,973 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 18 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:20,973 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 539 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-19 13:52:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-03-19 13:52:20,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 241. [2022-03-19 13:52:20,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.6355932203389831) internal successors, (386), 236 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:20,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 390 transitions. [2022-03-19 13:52:20,987 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 390 transitions. Word has length 93 [2022-03-19 13:52:20,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:20,987 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 390 transitions. [2022-03-19 13:52:20,987 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:20,987 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 390 transitions. [2022-03-19 13:52:20,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-19 13:52:20,988 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:20,988 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:20,989 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 13:52:20,989 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:20,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:20,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1798395197, now seen corresponding path program 1 times [2022-03-19 13:52:20,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:20,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [745953976] [2022-03-19 13:52:20,998 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:20,998 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:20,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1798395197, now seen corresponding path program 2 times [2022-03-19 13:52:20,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:20,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670154414] [2022-03-19 13:52:20,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:20,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:21,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:21,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:21,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:52:21,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:21,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670154414] [2022-03-19 13:52:21,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670154414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:21,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:21,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:21,104 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:21,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [745953976] [2022-03-19 13:52:21,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [745953976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:21,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:21,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:21,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338526315] [2022-03-19 13:52:21,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:21,105 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:21,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:21,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:21,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:21,105 INFO L87 Difference]: Start difference. First operand 241 states and 390 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:23,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:26,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:27,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:27,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:27,618 INFO L93 Difference]: Finished difference Result 469 states and 764 transitions. [2022-03-19 13:52:27,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:27,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-19 13:52:27,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:27,619 INFO L225 Difference]: With dead ends: 469 [2022-03-19 13:52:27,619 INFO L226 Difference]: Without dead ends: 254 [2022-03-19 13:52:27,620 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:27,620 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 22 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:27,621 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 539 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 370 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-19 13:52:27,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-03-19 13:52:27,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 241. [2022-03-19 13:52:27,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.63135593220339) internal successors, (385), 236 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:27,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 389 transitions. [2022-03-19 13:52:27,627 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 389 transitions. Word has length 94 [2022-03-19 13:52:27,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:27,627 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 389 transitions. [2022-03-19 13:52:27,627 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:27,628 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 389 transitions. [2022-03-19 13:52:27,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-19 13:52:27,628 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:27,628 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:27,628 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 13:52:27,629 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:27,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:27,629 INFO L85 PathProgramCache]: Analyzing trace with hash -509858819, now seen corresponding path program 1 times [2022-03-19 13:52:27,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:27,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [76282918] [2022-03-19 13:52:27,637 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:27,637 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:27,637 INFO L85 PathProgramCache]: Analyzing trace with hash -509858819, now seen corresponding path program 2 times [2022-03-19 13:52:27,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:27,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394647583] [2022-03-19 13:52:27,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:27,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:27,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:52:27,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:27,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394647583] [2022-03-19 13:52:27,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394647583] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:27,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:27,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:27,725 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:27,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [76282918] [2022-03-19 13:52:27,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [76282918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:27,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:27,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:27,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156603304] [2022-03-19 13:52:27,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:27,726 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:27,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:27,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:27,727 INFO L87 Difference]: Start difference. First operand 241 states and 389 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:30,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:32,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:34,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:34,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:34,916 INFO L93 Difference]: Finished difference Result 540 states and 868 transitions. [2022-03-19 13:52:34,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:34,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2022-03-19 13:52:34,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:34,918 INFO L225 Difference]: With dead ends: 540 [2022-03-19 13:52:34,918 INFO L226 Difference]: Without dead ends: 325 [2022-03-19 13:52:34,919 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:34,919 INFO L912 BasicCegarLoop]: 146 mSDtfsCounter, 159 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:34,919 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 416 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 500 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-03-19 13:52:34,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2022-03-19 13:52:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 241. [2022-03-19 13:52:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.61864406779661) internal successors, (382), 236 states have internal predecessors, (382), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:34,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 386 transitions. [2022-03-19 13:52:34,926 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 386 transitions. Word has length 95 [2022-03-19 13:52:34,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:34,926 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 386 transitions. [2022-03-19 13:52:34,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:34,926 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 386 transitions. [2022-03-19 13:52:34,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-19 13:52:34,930 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:34,930 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:34,930 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 13:52:34,930 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:34,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2097147880, now seen corresponding path program 1 times [2022-03-19 13:52:34,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:34,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1411540142] [2022-03-19 13:52:34,938 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:34,938 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:34,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2097147880, now seen corresponding path program 2 times [2022-03-19 13:52:34,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:34,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362472388] [2022-03-19 13:52:34,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:34,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:35,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:35,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:35,030 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:52:35,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:35,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362472388] [2022-03-19 13:52:35,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362472388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:35,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:35,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:35,031 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:35,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1411540142] [2022-03-19 13:52:35,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1411540142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:35,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:35,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:35,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816520506] [2022-03-19 13:52:35,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:35,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:35,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:35,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:35,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:35,032 INFO L87 Difference]: Start difference. First operand 241 states and 386 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:37,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:37,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:37,356 INFO L93 Difference]: Finished difference Result 459 states and 745 transitions. [2022-03-19 13:52:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:37,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-03-19 13:52:37,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:37,358 INFO L225 Difference]: With dead ends: 459 [2022-03-19 13:52:37,358 INFO L226 Difference]: Without dead ends: 244 [2022-03-19 13:52:37,358 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:37,358 INFO L912 BasicCegarLoop]: 214 mSDtfsCounter, 11 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:37,359 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 553 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:52:37,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2022-03-19 13:52:37,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 241. [2022-03-19 13:52:37,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 236 states have (on average 1.6144067796610169) internal successors, (381), 236 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:37,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 385 transitions. [2022-03-19 13:52:37,365 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 385 transitions. Word has length 96 [2022-03-19 13:52:37,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:37,365 INFO L478 AbstractCegarLoop]: Abstraction has 241 states and 385 transitions. [2022-03-19 13:52:37,365 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:37,365 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 385 transitions. [2022-03-19 13:52:37,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-19 13:52:37,366 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:37,366 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:37,366 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-19 13:52:37,366 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:37,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:37,367 INFO L85 PathProgramCache]: Analyzing trace with hash -338685809, now seen corresponding path program 1 times [2022-03-19 13:52:37,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:37,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1546629610] [2022-03-19 13:52:37,373 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:37,373 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash -338685809, now seen corresponding path program 2 times [2022-03-19 13:52:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:37,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597045560] [2022-03-19 13:52:37,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:37,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:37,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:52:37,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:37,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597045560] [2022-03-19 13:52:37,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597045560] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:37,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:37,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:37,509 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:37,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1546629610] [2022-03-19 13:52:37,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1546629610] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:37,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:37,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:37,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456571970] [2022-03-19 13:52:37,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:37,509 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:37,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:37,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:37,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:37,510 INFO L87 Difference]: Start difference. First operand 241 states and 385 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) [2022-03-19 13:52:38,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:40,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:42,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:43,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:43,330 INFO L93 Difference]: Finished difference Result 616 states and 1000 transitions. [2022-03-19 13:52:43,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:43,331 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 96 [2022-03-19 13:52:43,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:43,332 INFO L225 Difference]: With dead ends: 616 [2022-03-19 13:52:43,332 INFO L226 Difference]: Without dead ends: 401 [2022-03-19 13:52:43,333 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:43,333 INFO L912 BasicCegarLoop]: 140 mSDtfsCounter, 140 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:43,334 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 404 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-19 13:52:43,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-03-19 13:52:43,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 305. [2022-03-19 13:52:43,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 300 states have (on average 1.6433333333333333) internal successors, (493), 300 states have internal predecessors, (493), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:43,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 497 transitions. [2022-03-19 13:52:43,344 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 497 transitions. Word has length 96 [2022-03-19 13:52:43,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:43,344 INFO L478 AbstractCegarLoop]: Abstraction has 305 states and 497 transitions. [2022-03-19 13:52:43,345 INFO L479 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) [2022-03-19 13:52:43,345 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 497 transitions. [2022-03-19 13:52:43,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-03-19 13:52:43,345 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:43,345 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:43,346 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 13:52:43,346 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:43,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:43,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1412448729, now seen corresponding path program 1 times [2022-03-19 13:52:43,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:43,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1215964881] [2022-03-19 13:52:43,354 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:43,354 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:43,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1412448729, now seen corresponding path program 2 times [2022-03-19 13:52:43,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:43,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735023472] [2022-03-19 13:52:43,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:43,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:43,437 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-19 13:52:43,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:43,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735023472] [2022-03-19 13:52:43,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735023472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:43,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:43,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:43,438 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:43,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1215964881] [2022-03-19 13:52:43,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1215964881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:43,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:43,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:43,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968337430] [2022-03-19 13:52:43,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:43,439 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:43,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:43,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:43,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:43,439 INFO L87 Difference]: Start difference. First operand 305 states and 497 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:45,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:47,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:49,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:51,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:51,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:51,564 INFO L93 Difference]: Finished difference Result 626 states and 1027 transitions. [2022-03-19 13:52:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:51,565 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 102 [2022-03-19 13:52:51,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:51,566 INFO L225 Difference]: With dead ends: 626 [2022-03-19 13:52:51,566 INFO L226 Difference]: Without dead ends: 347 [2022-03-19 13:52:51,566 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:51,568 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 32 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:51,568 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 553 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 409 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2022-03-19 13:52:51,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-03-19 13:52:51,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 327. [2022-03-19 13:52:51,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 322 states have (on average 1.6428571428571428) internal successors, (529), 322 states have internal predecessors, (529), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:51,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 533 transitions. [2022-03-19 13:52:51,579 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 533 transitions. Word has length 102 [2022-03-19 13:52:51,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:51,579 INFO L478 AbstractCegarLoop]: Abstraction has 327 states and 533 transitions. [2022-03-19 13:52:51,579 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:51,579 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 533 transitions. [2022-03-19 13:52:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-03-19 13:52:51,580 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:51,580 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:51,580 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-19 13:52:51,580 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:51,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:51,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1276183403, now seen corresponding path program 1 times [2022-03-19 13:52:51,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:51,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1091493096] [2022-03-19 13:52:51,589 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:51,589 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:51,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1276183403, now seen corresponding path program 2 times [2022-03-19 13:52:51,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:51,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263478477] [2022-03-19 13:52:51,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:51,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:52:51,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:51,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263478477] [2022-03-19 13:52:51,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263478477] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:51,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:51,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:51,678 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:51,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1091493096] [2022-03-19 13:52:51,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1091493096] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:51,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:51,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:51,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030962097] [2022-03-19 13:52:51,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:51,678 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:51,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:51,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:51,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:51,680 INFO L87 Difference]: Start difference. First operand 327 states and 533 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) [2022-03-19 13:52:53,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:55,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:57,208 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:59,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:52:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:52:59,833 INFO L93 Difference]: Finished difference Result 752 states and 1228 transitions. [2022-03-19 13:52:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:52:59,834 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 109 [2022-03-19 13:52:59,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:52:59,835 INFO L225 Difference]: With dead ends: 752 [2022-03-19 13:52:59,835 INFO L226 Difference]: Without dead ends: 451 [2022-03-19 13:52:59,836 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:52:59,836 INFO L912 BasicCegarLoop]: 261 mSDtfsCounter, 157 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 47 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:52:59,836 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 646 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 618 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-03-19 13:52:59,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-03-19 13:52:59,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 343. [2022-03-19 13:52:59,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.6242603550295858) internal successors, (549), 338 states have internal predecessors, (549), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:52:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 553 transitions. [2022-03-19 13:52:59,848 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 553 transitions. Word has length 109 [2022-03-19 13:52:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:52:59,848 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 553 transitions. [2022-03-19 13:52:59,848 INFO L479 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) [2022-03-19 13:52:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 553 transitions. [2022-03-19 13:52:59,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-03-19 13:52:59,849 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:52:59,849 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:52:59,849 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 13:52:59,849 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:52:59,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:52:59,850 INFO L85 PathProgramCache]: Analyzing trace with hash -490516932, now seen corresponding path program 1 times [2022-03-19 13:52:59,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:59,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [339209426] [2022-03-19 13:52:59,859 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:52:59,859 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:52:59,859 INFO L85 PathProgramCache]: Analyzing trace with hash -490516932, now seen corresponding path program 2 times [2022-03-19 13:52:59,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:52:59,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138487624] [2022-03-19 13:52:59,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:52:59,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:52:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:59,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:52:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:52:59,958 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:52:59,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:52:59,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138487624] [2022-03-19 13:52:59,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138487624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:59,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:59,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:59,958 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:52:59,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [339209426] [2022-03-19 13:52:59,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [339209426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:52:59,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:52:59,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:52:59,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786975854] [2022-03-19 13:52:59,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:52:59,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:52:59,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:52:59,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:52:59,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:52:59,959 INFO L87 Difference]: Start difference. First operand 343 states and 553 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:03,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:05,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:05,677 INFO L93 Difference]: Finished difference Result 744 states and 1198 transitions. [2022-03-19 13:53:05,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:05,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-03-19 13:53:05,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:05,678 INFO L225 Difference]: With dead ends: 744 [2022-03-19 13:53:05,678 INFO L226 Difference]: Without dead ends: 427 [2022-03-19 13:53:05,679 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:05,679 INFO L912 BasicCegarLoop]: 134 mSDtfsCounter, 156 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:05,680 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 392 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 13:53:05,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-03-19 13:53:05,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 343. [2022-03-19 13:53:05,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.6094674556213018) internal successors, (544), 338 states have internal predecessors, (544), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:05,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 548 transitions. [2022-03-19 13:53:05,691 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 548 transitions. Word has length 110 [2022-03-19 13:53:05,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:05,692 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 548 transitions. [2022-03-19 13:53:05,692 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:05,692 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 548 transitions. [2022-03-19 13:53:05,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-19 13:53:05,692 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:05,693 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:05,693 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 13:53:05,693 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:05,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:05,693 INFO L85 PathProgramCache]: Analyzing trace with hash 469998749, now seen corresponding path program 1 times [2022-03-19 13:53:05,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:05,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1742575562] [2022-03-19 13:53:05,704 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:05,704 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:05,704 INFO L85 PathProgramCache]: Analyzing trace with hash 469998749, now seen corresponding path program 2 times [2022-03-19 13:53:05,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:05,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255910372] [2022-03-19 13:53:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:05,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:05,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-19 13:53:05,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:05,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255910372] [2022-03-19 13:53:05,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255910372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:05,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:05,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:05,806 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:05,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1742575562] [2022-03-19 13:53:05,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1742575562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:05,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:05,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:05,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91120026] [2022-03-19 13:53:05,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:05,806 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:05,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:05,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:05,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:05,807 INFO L87 Difference]: Start difference. First operand 343 states and 548 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:07,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:08,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:10,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:11,249 INFO L93 Difference]: Finished difference Result 672 states and 1081 transitions. [2022-03-19 13:53:11,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:11,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 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 116 [2022-03-19 13:53:11,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:11,250 INFO L225 Difference]: With dead ends: 672 [2022-03-19 13:53:11,250 INFO L226 Difference]: Without dead ends: 355 [2022-03-19 13:53:11,251 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:11,251 INFO L912 BasicCegarLoop]: 244 mSDtfsCounter, 20 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:11,252 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 618 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 409 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-03-19 13:53:11,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-03-19 13:53:11,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 343. [2022-03-19 13:53:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.606508875739645) internal successors, (543), 338 states have internal predecessors, (543), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 547 transitions. [2022-03-19 13:53:11,268 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 547 transitions. Word has length 116 [2022-03-19 13:53:11,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:11,268 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 547 transitions. [2022-03-19 13:53:11,268 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 547 transitions. [2022-03-19 13:53:11,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-19 13:53:11,269 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:11,269 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:11,269 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 13:53:11,270 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:11,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:11,270 INFO L85 PathProgramCache]: Analyzing trace with hash -962398235, now seen corresponding path program 1 times [2022-03-19 13:53:11,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:11,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [522457386] [2022-03-19 13:53:11,280 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:11,281 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash -962398235, now seen corresponding path program 2 times [2022-03-19 13:53:11,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:11,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410665962] [2022-03-19 13:53:11,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:11,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:11,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:11,391 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-19 13:53:11,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:11,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410665962] [2022-03-19 13:53:11,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410665962] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:11,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:11,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:11,391 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:11,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [522457386] [2022-03-19 13:53:11,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [522457386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:11,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:11,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:11,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384984315] [2022-03-19 13:53:11,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:11,392 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:11,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:11,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:11,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:11,392 INFO L87 Difference]: Start difference. First operand 343 states and 547 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:12,630 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:15,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:17,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:17,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:17,567 INFO L93 Difference]: Finished difference Result 743 states and 1185 transitions. [2022-03-19 13:53:17,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:17,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-03-19 13:53:17,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:17,569 INFO L225 Difference]: With dead ends: 743 [2022-03-19 13:53:17,569 INFO L226 Difference]: Without dead ends: 426 [2022-03-19 13:53:17,570 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:17,570 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 154 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:17,570 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 394 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 13:53:17,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-03-19 13:53:17,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 343. [2022-03-19 13:53:17,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5917159763313609) internal successors, (538), 338 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:17,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 542 transitions. [2022-03-19 13:53:17,599 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 542 transitions. Word has length 116 [2022-03-19 13:53:17,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:17,599 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 542 transitions. [2022-03-19 13:53:17,599 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:17,599 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 542 transitions. [2022-03-19 13:53:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-03-19 13:53:17,600 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:17,600 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:17,600 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 13:53:17,600 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:17,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:17,601 INFO L85 PathProgramCache]: Analyzing trace with hash 944332162, now seen corresponding path program 1 times [2022-03-19 13:53:17,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:17,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2129014001] [2022-03-19 13:53:17,611 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:17,612 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:17,612 INFO L85 PathProgramCache]: Analyzing trace with hash 944332162, now seen corresponding path program 2 times [2022-03-19 13:53:17,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:17,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073994772] [2022-03-19 13:53:17,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:17,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:17,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:17,691 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-19 13:53:17,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:17,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073994772] [2022-03-19 13:53:17,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073994772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:17,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:17,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:17,692 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:17,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2129014001] [2022-03-19 13:53:17,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2129014001] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:17,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:17,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:17,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219385] [2022-03-19 13:53:17,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:17,692 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:17,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:17,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:17,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:17,693 INFO L87 Difference]: Start difference. First operand 343 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:19,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:21,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:22,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:24,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:25,186 INFO L93 Difference]: Finished difference Result 743 states and 1175 transitions. [2022-03-19 13:53:25,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:25,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-03-19 13:53:25,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:25,188 INFO L225 Difference]: With dead ends: 743 [2022-03-19 13:53:25,188 INFO L226 Difference]: Without dead ends: 426 [2022-03-19 13:53:25,189 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:25,189 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 159 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:25,189 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 394 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 487 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-03-19 13:53:25,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-03-19 13:53:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 343. [2022-03-19 13:53:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5739644970414202) internal successors, (532), 338 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 536 transitions. [2022-03-19 13:53:25,201 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 536 transitions. Word has length 117 [2022-03-19 13:53:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:25,202 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 536 transitions. [2022-03-19 13:53:25,202 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 536 transitions. [2022-03-19 13:53:25,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-19 13:53:25,202 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:25,203 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:25,203 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 13:53:25,203 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:25,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:25,203 INFO L85 PathProgramCache]: Analyzing trace with hash -310513943, now seen corresponding path program 1 times [2022-03-19 13:53:25,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:25,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1170544313] [2022-03-19 13:53:25,214 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:25,214 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:25,214 INFO L85 PathProgramCache]: Analyzing trace with hash -310513943, now seen corresponding path program 2 times [2022-03-19 13:53:25,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:25,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677101497] [2022-03-19 13:53:25,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:25,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:25,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:25,316 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-19 13:53:25,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:25,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677101497] [2022-03-19 13:53:25,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677101497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:25,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:25,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:25,317 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:25,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1170544313] [2022-03-19 13:53:25,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1170544313] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:25,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:25,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:25,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942357666] [2022-03-19 13:53:25,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:25,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:25,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:25,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:25,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:25,318 INFO L87 Difference]: Start difference. First operand 343 states and 536 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:27,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:30,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:30,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:30,594 INFO L93 Difference]: Finished difference Result 677 states and 1065 transitions. [2022-03-19 13:53:30,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:30,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-19 13:53:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:30,595 INFO L225 Difference]: With dead ends: 677 [2022-03-19 13:53:30,595 INFO L226 Difference]: Without dead ends: 360 [2022-03-19 13:53:30,596 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:30,596 INFO L912 BasicCegarLoop]: 215 mSDtfsCounter, 36 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:30,597 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 559 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 404 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-19 13:53:30,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-03-19 13:53:30,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 343. [2022-03-19 13:53:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5710059171597632) internal successors, (531), 338 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 535 transitions. [2022-03-19 13:53:30,609 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 535 transitions. Word has length 118 [2022-03-19 13:53:30,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:30,609 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 535 transitions. [2022-03-19 13:53:30,609 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:30,609 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 535 transitions. [2022-03-19 13:53:30,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-03-19 13:53:30,610 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:30,610 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:30,610 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-19 13:53:30,610 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:30,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:30,610 INFO L85 PathProgramCache]: Analyzing trace with hash 201635694, now seen corresponding path program 1 times [2022-03-19 13:53:30,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:30,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2039697232] [2022-03-19 13:53:30,622 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:30,622 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:30,622 INFO L85 PathProgramCache]: Analyzing trace with hash 201635694, now seen corresponding path program 2 times [2022-03-19 13:53:30,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:30,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578646388] [2022-03-19 13:53:30,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:30,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:30,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-19 13:53:30,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:30,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578646388] [2022-03-19 13:53:30,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578646388] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:30,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:30,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:30,699 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:30,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2039697232] [2022-03-19 13:53:30,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2039697232] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:30,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:30,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:30,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921306705] [2022-03-19 13:53:30,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:30,700 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:30,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:30,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:30,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:30,700 INFO L87 Difference]: Start difference. First operand 343 states and 535 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:31,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:33,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:35,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:36,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:36,296 INFO L93 Difference]: Finished difference Result 667 states and 1050 transitions. [2022-03-19 13:53:36,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:36,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 120 [2022-03-19 13:53:36,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:36,298 INFO L225 Difference]: With dead ends: 667 [2022-03-19 13:53:36,298 INFO L226 Difference]: Without dead ends: 350 [2022-03-19 13:53:36,298 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:36,299 INFO L912 BasicCegarLoop]: 222 mSDtfsCounter, 26 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:36,299 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 573 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 13:53:36,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-03-19 13:53:36,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 343. [2022-03-19 13:53:36,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 338 states have (on average 1.5680473372781065) internal successors, (530), 338 states have internal predecessors, (530), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:36,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 534 transitions. [2022-03-19 13:53:36,310 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 534 transitions. Word has length 120 [2022-03-19 13:53:36,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:36,311 INFO L478 AbstractCegarLoop]: Abstraction has 343 states and 534 transitions. [2022-03-19 13:53:36,311 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:36,311 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 534 transitions. [2022-03-19 13:53:36,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-03-19 13:53:36,311 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:36,312 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:36,312 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-19 13:53:36,312 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:36,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:36,312 INFO L85 PathProgramCache]: Analyzing trace with hash 854989334, now seen corresponding path program 1 times [2022-03-19 13:53:36,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:36,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [683838161] [2022-03-19 13:53:36,322 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:36,322 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:36,323 INFO L85 PathProgramCache]: Analyzing trace with hash 854989334, now seen corresponding path program 2 times [2022-03-19 13:53:36,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:36,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727911900] [2022-03-19 13:53:36,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:36,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:36,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 13:53:36,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:36,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727911900] [2022-03-19 13:53:36,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727911900] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:36,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:36,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:36,409 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:36,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [683838161] [2022-03-19 13:53:36,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [683838161] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:36,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:36,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:36,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482544881] [2022-03-19 13:53:36,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:36,410 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:36,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:36,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:36,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:36,410 INFO L87 Difference]: Start difference. First operand 343 states and 534 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:38,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:40,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:41,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:41,999 INFO L93 Difference]: Finished difference Result 783 states and 1225 transitions. [2022-03-19 13:53:41,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:41,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-03-19 13:53:42,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:42,001 INFO L225 Difference]: With dead ends: 783 [2022-03-19 13:53:42,001 INFO L226 Difference]: Without dead ends: 466 [2022-03-19 13:53:42,001 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:42,002 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 133 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 59 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:42,002 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 394 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 488 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-03-19 13:53:42,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-03-19 13:53:42,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 380. [2022-03-19 13:53:42,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 375 states have (on average 1.5733333333333333) internal successors, (590), 375 states have internal predecessors, (590), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:42,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 594 transitions. [2022-03-19 13:53:42,046 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 594 transitions. Word has length 124 [2022-03-19 13:53:42,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:42,046 INFO L478 AbstractCegarLoop]: Abstraction has 380 states and 594 transitions. [2022-03-19 13:53:42,046 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:42,046 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 594 transitions. [2022-03-19 13:53:42,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-19 13:53:42,047 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:42,047 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:42,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-19 13:53:42,047 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:42,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:42,047 INFO L85 PathProgramCache]: Analyzing trace with hash 34595066, now seen corresponding path program 1 times [2022-03-19 13:53:42,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:42,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [364298650] [2022-03-19 13:53:42,058 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:42,058 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:42,058 INFO L85 PathProgramCache]: Analyzing trace with hash 34595066, now seen corresponding path program 2 times [2022-03-19 13:53:42,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:42,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647105657] [2022-03-19 13:53:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:42,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:42,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 13:53:42,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:42,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647105657] [2022-03-19 13:53:42,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647105657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:42,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:42,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:42,148 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:42,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [364298650] [2022-03-19 13:53:42,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [364298650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:42,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:42,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:42,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051688116] [2022-03-19 13:53:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:42,148 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:42,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:42,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:42,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:42,149 INFO L87 Difference]: Start difference. First operand 380 states and 594 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:45,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:45,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:45,650 INFO L93 Difference]: Finished difference Result 829 states and 1302 transitions. [2022-03-19 13:53:45,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:45,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-19 13:53:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:45,652 INFO L225 Difference]: With dead ends: 829 [2022-03-19 13:53:45,652 INFO L226 Difference]: Without dead ends: 475 [2022-03-19 13:53:45,652 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:45,653 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 85 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:45,653 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 523 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-03-19 13:53:45,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-03-19 13:53:45,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 420. [2022-03-19 13:53:45,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 415 states have (on average 1.5759036144578313) internal successors, (654), 415 states have internal predecessors, (654), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:45,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 658 transitions. [2022-03-19 13:53:45,670 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 658 transitions. Word has length 125 [2022-03-19 13:53:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:45,670 INFO L478 AbstractCegarLoop]: Abstraction has 420 states and 658 transitions. [2022-03-19 13:53:45,670 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:45,670 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 658 transitions. [2022-03-19 13:53:45,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-03-19 13:53:45,671 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:45,671 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:45,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-19 13:53:45,671 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:45,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:45,672 INFO L85 PathProgramCache]: Analyzing trace with hash 61660668, now seen corresponding path program 1 times [2022-03-19 13:53:45,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:45,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1078927672] [2022-03-19 13:53:45,709 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:45,709 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:45,709 INFO L85 PathProgramCache]: Analyzing trace with hash 61660668, now seen corresponding path program 2 times [2022-03-19 13:53:45,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:45,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341879288] [2022-03-19 13:53:45,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:45,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-19 13:53:45,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:45,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341879288] [2022-03-19 13:53:45,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341879288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:45,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:45,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:45,791 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:45,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1078927672] [2022-03-19 13:53:45,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1078927672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:45,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:45,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:45,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202462117] [2022-03-19 13:53:45,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:45,792 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:45,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:45,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:45,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:45,792 INFO L87 Difference]: Start difference. First operand 420 states and 658 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:48,398 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:50,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:51,303 INFO L93 Difference]: Finished difference Result 860 states and 1353 transitions. [2022-03-19 13:53:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:51,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-03-19 13:53:51,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:51,305 INFO L225 Difference]: With dead ends: 860 [2022-03-19 13:53:51,305 INFO L226 Difference]: Without dead ends: 466 [2022-03-19 13:53:51,305 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:51,305 INFO L912 BasicCegarLoop]: 261 mSDtfsCounter, 36 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:51,308 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 651 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 472 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2022-03-19 13:53:51,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-03-19 13:53:51,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 444. [2022-03-19 13:53:51,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 439 states have (on average 1.571753986332574) internal successors, (690), 439 states have internal predecessors, (690), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:51,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 694 transitions. [2022-03-19 13:53:51,327 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 694 transitions. Word has length 125 [2022-03-19 13:53:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:51,327 INFO L478 AbstractCegarLoop]: Abstraction has 444 states and 694 transitions. [2022-03-19 13:53:51,327 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:51,327 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 694 transitions. [2022-03-19 13:53:51,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-19 13:53:51,328 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:51,328 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:51,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-19 13:53:51,328 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:51,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:51,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2005415765, now seen corresponding path program 1 times [2022-03-19 13:53:51,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:51,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1259693172] [2022-03-19 13:53:51,341 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:51,341 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:51,341 INFO L85 PathProgramCache]: Analyzing trace with hash -2005415765, now seen corresponding path program 2 times [2022-03-19 13:53:51,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:51,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528302179] [2022-03-19 13:53:51,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:51,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:51,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 13:53:51,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:51,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528302179] [2022-03-19 13:53:51,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528302179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:51,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:51,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:51,454 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:51,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1259693172] [2022-03-19 13:53:51,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1259693172] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:51,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:51,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262443829] [2022-03-19 13:53:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:51,454 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:51,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:51,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:51,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:51,455 INFO L87 Difference]: Start difference. First operand 444 states and 694 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:52,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:54,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:56,440 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:58,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:53:58,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:53:58,878 INFO L93 Difference]: Finished difference Result 985 states and 1544 transitions. [2022-03-19 13:53:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:53:58,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 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 132 [2022-03-19 13:53:58,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:53:58,880 INFO L225 Difference]: With dead ends: 985 [2022-03-19 13:53:58,880 INFO L226 Difference]: Without dead ends: 567 [2022-03-19 13:53:58,881 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:53:58,881 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 126 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:53:58,881 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 395 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 489 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-03-19 13:53:58,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-03-19 13:53:58,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 487. [2022-03-19 13:53:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 482 states have (on average 1.5767634854771784) internal successors, (760), 482 states have internal predecessors, (760), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 764 transitions. [2022-03-19 13:53:58,902 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 764 transitions. Word has length 132 [2022-03-19 13:53:58,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:53:58,902 INFO L478 AbstractCegarLoop]: Abstraction has 487 states and 764 transitions. [2022-03-19 13:53:58,902 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:53:58,902 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 764 transitions. [2022-03-19 13:53:58,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-19 13:53:58,903 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:53:58,903 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:53:58,903 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-19 13:53:58,903 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:53:58,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:53:58,904 INFO L85 PathProgramCache]: Analyzing trace with hash -265280145, now seen corresponding path program 1 times [2022-03-19 13:53:58,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:58,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [405281994] [2022-03-19 13:53:58,921 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:53:58,922 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:53:58,922 INFO L85 PathProgramCache]: Analyzing trace with hash -265280145, now seen corresponding path program 2 times [2022-03-19 13:53:58,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:53:58,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138690060] [2022-03-19 13:53:58,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:53:58,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:53:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:59,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:53:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:53:59,042 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 13:53:59,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:53:59,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138690060] [2022-03-19 13:53:59,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138690060] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:59,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:59,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:59,042 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:53:59,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [405281994] [2022-03-19 13:53:59,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [405281994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:53:59,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:53:59,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:53:59,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142398697] [2022-03-19 13:53:59,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:53:59,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:53:59,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:53:59,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:53:59,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:53:59,043 INFO L87 Difference]: Start difference. First operand 487 states and 764 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:02,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:03,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:04,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:54:04,423 INFO L93 Difference]: Finished difference Result 1031 states and 1619 transitions. [2022-03-19 13:54:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:54:04,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-19 13:54:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:54:04,425 INFO L225 Difference]: With dead ends: 1031 [2022-03-19 13:54:04,425 INFO L226 Difference]: Without dead ends: 568 [2022-03-19 13:54:04,426 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:54:04,426 INFO L912 BasicCegarLoop]: 135 mSDtfsCounter, 127 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:54:04,426 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 394 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-03-19 13:54:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-03-19 13:54:04,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 489. [2022-03-19 13:54:04,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5764462809917354) internal successors, (763), 484 states have internal predecessors, (763), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:04,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 767 transitions. [2022-03-19 13:54:04,476 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 767 transitions. Word has length 133 [2022-03-19 13:54:04,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:54:04,476 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 767 transitions. [2022-03-19 13:54:04,477 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:04,477 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 767 transitions. [2022-03-19 13:54:04,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-19 13:54:04,478 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:54:04,478 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:54:04,478 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-19 13:54:04,478 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:54:04,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:54:04,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1776988138, now seen corresponding path program 1 times [2022-03-19 13:54:04,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:04,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1208524303] [2022-03-19 13:54:04,493 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:54:04,493 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:54:04,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1776988138, now seen corresponding path program 2 times [2022-03-19 13:54:04,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:54:04,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079859299] [2022-03-19 13:54:04,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:54:04,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:54:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:54:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:04,598 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 13:54:04,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:54:04,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079859299] [2022-03-19 13:54:04,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079859299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:04,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:04,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:04,598 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:54:04,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1208524303] [2022-03-19 13:54:04,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1208524303] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:04,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:04,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:04,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579689515] [2022-03-19 13:54:04,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:54:04,599 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:54:04,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:04,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:54:04,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:54:04,599 INFO L87 Difference]: Start difference. First operand 489 states and 767 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:06,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:09,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:11,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:11,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:54:11,483 INFO L93 Difference]: Finished difference Result 1031 states and 1618 transitions. [2022-03-19 13:54:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:54:11,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 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 141 [2022-03-19 13:54:11,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:54:11,485 INFO L225 Difference]: With dead ends: 1031 [2022-03-19 13:54:11,485 INFO L226 Difference]: Without dead ends: 568 [2022-03-19 13:54:11,486 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:54:11,486 INFO L912 BasicCegarLoop]: 136 mSDtfsCounter, 155 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-19 13:54:11,487 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 396 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-19 13:54:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-03-19 13:54:11,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 489. [2022-03-19 13:54:11,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5578512396694215) internal successors, (754), 484 states have internal predecessors, (754), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:11,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 758 transitions. [2022-03-19 13:54:11,510 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 758 transitions. Word has length 141 [2022-03-19 13:54:11,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:54:11,510 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 758 transitions. [2022-03-19 13:54:11,510 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 758 transitions. [2022-03-19 13:54:11,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-19 13:54:11,513 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:54:11,514 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:54:11,514 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-19 13:54:11,514 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:54:11,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:54:11,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1650469701, now seen corresponding path program 1 times [2022-03-19 13:54:11,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:11,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1467399947] [2022-03-19 13:54:11,527 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:54:11,527 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:54:11,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1650469701, now seen corresponding path program 2 times [2022-03-19 13:54:11,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:54:11,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134367628] [2022-03-19 13:54:11,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:54:11,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:54:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:11,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:54:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 13:54:11,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:54:11,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134367628] [2022-03-19 13:54:11,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134367628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:11,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:11,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:11,640 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:54:11,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1467399947] [2022-03-19 13:54:11,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1467399947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:11,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:11,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:11,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597676518] [2022-03-19 13:54:11,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:54:11,641 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:54:11,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:11,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:54:11,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:54:11,642 INFO L87 Difference]: Start difference. First operand 489 states and 758 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:14,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:16,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:18,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:18,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:54:18,611 INFO L93 Difference]: Finished difference Result 1021 states and 1587 transitions. [2022-03-19 13:54:18,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:54:18,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 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 143 [2022-03-19 13:54:18,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:54:18,613 INFO L225 Difference]: With dead ends: 1021 [2022-03-19 13:54:18,613 INFO L226 Difference]: Without dead ends: 558 [2022-03-19 13:54:18,614 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:54:18,614 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 145 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 52 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-03-19 13:54:18,614 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 440 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 485 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2022-03-19 13:54:18,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-19 13:54:18,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 489. [2022-03-19 13:54:18,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 484 states have (on average 1.5392561983471074) internal successors, (745), 484 states have internal predecessors, (745), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:18,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 749 transitions. [2022-03-19 13:54:18,646 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 749 transitions. Word has length 143 [2022-03-19 13:54:18,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:54:18,647 INFO L478 AbstractCegarLoop]: Abstraction has 489 states and 749 transitions. [2022-03-19 13:54:18,647 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:18,647 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 749 transitions. [2022-03-19 13:54:18,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-19 13:54:18,648 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:54:18,648 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:54:18,648 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-19 13:54:18,659 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:54:18,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:54:18,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1180410267, now seen corresponding path program 1 times [2022-03-19 13:54:18,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:18,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [809686982] [2022-03-19 13:54:18,686 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:54:18,686 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:54:18,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1180410267, now seen corresponding path program 2 times [2022-03-19 13:54:18,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:54:18,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144322440] [2022-03-19 13:54:18,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:54:18,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:54:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:18,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:54:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 13:54:18,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:54:18,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144322440] [2022-03-19 13:54:18,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144322440] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:18,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:18,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:18,801 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:54:18,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [809686982] [2022-03-19 13:54:18,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [809686982] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:18,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:18,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:18,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477697339] [2022-03-19 13:54:18,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:54:18,802 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:54:18,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:18,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:54:18,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:54:18,803 INFO L87 Difference]: Start difference. First operand 489 states and 749 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:19,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:21,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:23,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:24,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:54:24,766 INFO L93 Difference]: Finished difference Result 1063 states and 1635 transitions. [2022-03-19 13:54:24,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:54:24,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 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 145 [2022-03-19 13:54:24,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:54:24,768 INFO L225 Difference]: With dead ends: 1063 [2022-03-19 13:54:24,769 INFO L226 Difference]: Without dead ends: 600 [2022-03-19 13:54:24,769 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:54:24,770 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 129 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 46 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-19 13:54:24,770 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 440 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-19 13:54:24,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-03-19 13:54:24,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 519. [2022-03-19 13:54:24,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 514 states have (on average 1.527237354085603) internal successors, (785), 514 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:24,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 789 transitions. [2022-03-19 13:54:24,797 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 789 transitions. Word has length 145 [2022-03-19 13:54:24,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:54:24,797 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 789 transitions. [2022-03-19 13:54:24,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:24,797 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 789 transitions. [2022-03-19 13:54:24,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-03-19 13:54:24,798 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:54:24,798 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:54:24,798 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-19 13:54:24,798 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:54:24,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:54:24,798 INFO L85 PathProgramCache]: Analyzing trace with hash 316453884, now seen corresponding path program 1 times [2022-03-19 13:54:24,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:24,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [818588183] [2022-03-19 13:54:24,811 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:54:24,811 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:54:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash 316453884, now seen corresponding path program 2 times [2022-03-19 13:54:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:54:24,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801300494] [2022-03-19 13:54:24,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:54:24,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:54:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:24,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:54:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:24,918 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 13:54:24,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:54:24,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801300494] [2022-03-19 13:54:24,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801300494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:24,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:24,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:24,919 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:54:24,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [818588183] [2022-03-19 13:54:24,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [818588183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:24,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:24,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:24,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669696101] [2022-03-19 13:54:24,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:54:24,921 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:54:24,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:24,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:54:24,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:54:24,921 INFO L87 Difference]: Start difference. First operand 519 states and 789 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:26,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:28,097 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:30,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:31,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:31,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:54:31,593 INFO L93 Difference]: Finished difference Result 1048 states and 1600 transitions. [2022-03-19 13:54:31,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:54:31,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-03-19 13:54:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:54:31,595 INFO L225 Difference]: With dead ends: 1048 [2022-03-19 13:54:31,595 INFO L226 Difference]: Without dead ends: 555 [2022-03-19 13:54:31,597 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:54:31,601 INFO L912 BasicCegarLoop]: 207 mSDtfsCounter, 69 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-03-19 13:54:31,601 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 545 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 494 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-03-19 13:54:31,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2022-03-19 13:54:31,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 519. [2022-03-19 13:54:31,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 514 states have (on average 1.5252918287937742) internal successors, (784), 514 states have internal predecessors, (784), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:31,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 788 transitions. [2022-03-19 13:54:31,629 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 788 transitions. Word has length 146 [2022-03-19 13:54:31,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:54:31,629 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 788 transitions. [2022-03-19 13:54:31,629 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 788 transitions. [2022-03-19 13:54:31,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-19 13:54:31,630 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:54:31,630 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:54:31,630 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-19 13:54:31,630 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:54:31,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:54:31,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1551149589, now seen corresponding path program 1 times [2022-03-19 13:54:31,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:31,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1870521383] [2022-03-19 13:54:31,670 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:54:31,670 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:54:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1551149589, now seen corresponding path program 2 times [2022-03-19 13:54:31,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:54:31,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273608601] [2022-03-19 13:54:31,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:54:31,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:54:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:31,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:54:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:31,763 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 13:54:31,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:54:31,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273608601] [2022-03-19 13:54:31,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273608601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:31,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:31,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:31,764 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:54:31,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1870521383] [2022-03-19 13:54:31,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1870521383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:31,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:31,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:31,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972620411] [2022-03-19 13:54:31,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:54:31,764 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:54:31,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:31,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:54:31,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:54:31,765 INFO L87 Difference]: Start difference. First operand 519 states and 788 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:33,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:35,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:37,716 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:38,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:54:38,138 INFO L93 Difference]: Finished difference Result 1081 states and 1647 transitions. [2022-03-19 13:54:38,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:54:38,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-19 13:54:38,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:54:38,140 INFO L225 Difference]: With dead ends: 1081 [2022-03-19 13:54:38,140 INFO L226 Difference]: Without dead ends: 588 [2022-03-19 13:54:38,141 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:54:38,141 INFO L912 BasicCegarLoop]: 153 mSDtfsCounter, 135 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:54:38,141 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 430 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 483 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-03-19 13:54:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-03-19 13:54:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 519. [2022-03-19 13:54:38,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 514 states have (on average 1.509727626459144) internal successors, (776), 514 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:38,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 780 transitions. [2022-03-19 13:54:38,168 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 780 transitions. Word has length 147 [2022-03-19 13:54:38,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:54:38,168 INFO L478 AbstractCegarLoop]: Abstraction has 519 states and 780 transitions. [2022-03-19 13:54:38,168 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:38,168 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 780 transitions. [2022-03-19 13:54:38,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-19 13:54:38,194 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:54:38,194 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:54:38,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-19 13:54:38,194 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:54:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:54:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash -520108691, now seen corresponding path program 1 times [2022-03-19 13:54:38,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:38,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [657942471] [2022-03-19 13:54:38,208 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:54:38,208 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:54:38,208 INFO L85 PathProgramCache]: Analyzing trace with hash -520108691, now seen corresponding path program 2 times [2022-03-19 13:54:38,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:54:38,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919497801] [2022-03-19 13:54:38,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:54:38,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:54:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:54:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:38,303 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-19 13:54:38,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:54:38,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919497801] [2022-03-19 13:54:38,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919497801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:38,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:38,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:54:38,303 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:54:38,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [657942471] [2022-03-19 13:54:38,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [657942471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:38,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:38,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:54:38,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216574502] [2022-03-19 13:54:38,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:54:38,304 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:54:38,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:38,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:54:38,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:54:38,305 INFO L87 Difference]: Start difference. First operand 519 states and 780 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:39,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:41,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:43,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:44,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:54:44,244 INFO L93 Difference]: Finished difference Result 1500 states and 2274 transitions. [2022-03-19 13:54:44,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:54:44,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-19 13:54:44,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:54:44,247 INFO L225 Difference]: With dead ends: 1500 [2022-03-19 13:54:44,247 INFO L226 Difference]: Without dead ends: 1007 [2022-03-19 13:54:44,248 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:54:44,248 INFO L912 BasicCegarLoop]: 257 mSDtfsCounter, 147 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-19 13:54:44,250 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 451 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 330 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-03-19 13:54:44,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2022-03-19 13:54:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1005. [2022-03-19 13:54:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 1000 states have (on average 1.501) internal successors, (1501), 1000 states have internal predecessors, (1501), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:44,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1505 transitions. [2022-03-19 13:54:44,305 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1505 transitions. Word has length 147 [2022-03-19 13:54:44,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:54:44,305 INFO L478 AbstractCegarLoop]: Abstraction has 1005 states and 1505 transitions. [2022-03-19 13:54:44,305 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:44,305 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1505 transitions. [2022-03-19 13:54:44,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-19 13:54:44,307 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:54:44,307 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:54:44,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-19 13:54:44,307 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:54:44,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:54:44,307 INFO L85 PathProgramCache]: Analyzing trace with hash -96461969, now seen corresponding path program 1 times [2022-03-19 13:54:44,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:44,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1110569452] [2022-03-19 13:54:44,320 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:54:44,320 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:54:44,320 INFO L85 PathProgramCache]: Analyzing trace with hash -96461969, now seen corresponding path program 2 times [2022-03-19 13:54:44,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:54:44,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852292316] [2022-03-19 13:54:44,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:54:44,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:54:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:44,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:54:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-19 13:54:44,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:54:44,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852292316] [2022-03-19 13:54:44,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852292316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:44,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:44,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:44,421 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:54:44,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1110569452] [2022-03-19 13:54:44,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1110569452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:44,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:44,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:44,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124541359] [2022-03-19 13:54:44,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:54:44,422 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:54:44,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:44,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:54:44,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:54:44,423 INFO L87 Difference]: Start difference. First operand 1005 states and 1505 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:46,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:47,896 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:48,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:54:48,921 INFO L93 Difference]: Finished difference Result 2117 states and 3162 transitions. [2022-03-19 13:54:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:54:48,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-19 13:54:48,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:54:48,925 INFO L225 Difference]: With dead ends: 2117 [2022-03-19 13:54:48,925 INFO L226 Difference]: Without dead ends: 1138 [2022-03-19 13:54:48,926 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:54:48,927 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 121 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:54:48,927 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 440 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-03-19 13:54:48,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-03-19 13:54:48,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 991. [2022-03-19 13:54:48,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 986 states have (on average 1.4939148073022313) internal successors, (1473), 986 states have internal predecessors, (1473), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1477 transitions. [2022-03-19 13:54:48,992 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1477 transitions. Word has length 147 [2022-03-19 13:54:48,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:54:48,993 INFO L478 AbstractCegarLoop]: Abstraction has 991 states and 1477 transitions. [2022-03-19 13:54:48,993 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:48,993 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1477 transitions. [2022-03-19 13:54:48,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-19 13:54:48,994 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:54:48,994 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 13:54:48,994 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-19 13:54:48,995 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:54:48,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:54:48,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1399952866, now seen corresponding path program 1 times [2022-03-19 13:54:48,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:48,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1344245221] [2022-03-19 13:54:49,025 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:54:49,026 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:54:49,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1399952866, now seen corresponding path program 2 times [2022-03-19 13:54:49,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:54:49,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749985942] [2022-03-19 13:54:49,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:54:49,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:54:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:49,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:54:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:49,123 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 13:54:49,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:54:49,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749985942] [2022-03-19 13:54:49,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749985942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:49,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:49,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:49,123 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:54:49,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1344245221] [2022-03-19 13:54:49,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1344245221] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:49,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:49,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:49,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133023347] [2022-03-19 13:54:49,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:54:49,124 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:54:49,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:49,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:54:49,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:54:49,124 INFO L87 Difference]: Start difference. First operand 991 states and 1477 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:51,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:53,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:53,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:54:53,781 INFO L93 Difference]: Finished difference Result 2173 states and 3232 transitions. [2022-03-19 13:54:53,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:54:53,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-03-19 13:54:53,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:54:53,785 INFO L225 Difference]: With dead ends: 2173 [2022-03-19 13:54:53,785 INFO L226 Difference]: Without dead ends: 1208 [2022-03-19 13:54:53,786 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:54:53,786 INFO L912 BasicCegarLoop]: 158 mSDtfsCounter, 130 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-03-19 13:54:53,786 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 440 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-03-19 13:54:53,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-03-19 13:54:53,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1047. [2022-03-19 13:54:53,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1042 states have (on average 1.478886756238004) internal successors, (1541), 1042 states have internal predecessors, (1541), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1545 transitions. [2022-03-19 13:54:53,846 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1545 transitions. Word has length 149 [2022-03-19 13:54:53,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:54:53,847 INFO L478 AbstractCegarLoop]: Abstraction has 1047 states and 1545 transitions. [2022-03-19 13:54:53,847 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:53,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1545 transitions. [2022-03-19 13:54:53,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-03-19 13:54:53,848 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:54:53,848 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 13:54:53,848 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-19 13:54:53,848 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:54:53,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:54:53,849 INFO L85 PathProgramCache]: Analyzing trace with hash 112372575, now seen corresponding path program 1 times [2022-03-19 13:54:53,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:53,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1362698728] [2022-03-19 13:54:53,863 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:54:53,863 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:54:53,863 INFO L85 PathProgramCache]: Analyzing trace with hash 112372575, now seen corresponding path program 2 times [2022-03-19 13:54:53,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:54:53,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107418003] [2022-03-19 13:54:53,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:54:53,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:54:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:54:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:54:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 13:54:53,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:54:53,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107418003] [2022-03-19 13:54:53,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107418003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:53,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:53,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:53,990 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:54:53,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1362698728] [2022-03-19 13:54:53,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1362698728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:54:53,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:54:53,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:54:53,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082674610] [2022-03-19 13:54:53,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:54:53,991 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:54:53,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:54:53,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:54:53,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:54:53,991 INFO L87 Difference]: Start difference. First operand 1047 states and 1545 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:54:56,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:54:58,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:00,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:00,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:55:00,790 INFO L93 Difference]: Finished difference Result 2137 states and 3153 transitions. [2022-03-19 13:55:00,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:55:00,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-03-19 13:55:00,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:55:00,793 INFO L225 Difference]: With dead ends: 2137 [2022-03-19 13:55:00,793 INFO L226 Difference]: Without dead ends: 1116 [2022-03-19 13:55:00,794 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:55:00,795 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 59 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:55:00,795 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 577 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 483 Invalid, 3 Unknown, 0 Unchecked, 6.7s Time] [2022-03-19 13:55:00,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-03-19 13:55:00,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1047. [2022-03-19 13:55:00,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1047 states, 1042 states have (on average 1.4769673704414588) internal successors, (1539), 1042 states have internal predecessors, (1539), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1047 states to 1047 states and 1543 transitions. [2022-03-19 13:55:00,869 INFO L78 Accepts]: Start accepts. Automaton has 1047 states and 1543 transitions. Word has length 150 [2022-03-19 13:55:00,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:55:00,869 INFO L478 AbstractCegarLoop]: Abstraction has 1047 states and 1543 transitions. [2022-03-19 13:55:00,869 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1047 states and 1543 transitions. [2022-03-19 13:55:00,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-03-19 13:55:00,871 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:55:00,871 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-03-19 13:55:00,871 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-19 13:55:00,871 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:55:00,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:55:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash -2121992331, now seen corresponding path program 1 times [2022-03-19 13:55:00,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:00,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [892200229] [2022-03-19 13:55:00,885 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:55:00,885 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:55:00,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2121992331, now seen corresponding path program 2 times [2022-03-19 13:55:00,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:55:00,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026829094] [2022-03-19 13:55:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:55:00,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:55:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:55:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:00,974 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-19 13:55:00,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:55:00,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026829094] [2022-03-19 13:55:00,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026829094] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:00,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:00,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:00,974 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:55:00,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [892200229] [2022-03-19 13:55:00,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [892200229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:00,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:00,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:00,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737759219] [2022-03-19 13:55:00,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:55:00,975 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:55:00,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:00,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:55:00,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:55:00,975 INFO L87 Difference]: Start difference. First operand 1047 states and 1543 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:02,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:55:03,433 INFO L93 Difference]: Finished difference Result 2137 states and 3149 transitions. [2022-03-19 13:55:03,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:55:03,434 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 157 [2022-03-19 13:55:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:55:03,437 INFO L225 Difference]: With dead ends: 2137 [2022-03-19 13:55:03,437 INFO L226 Difference]: Without dead ends: 1116 [2022-03-19 13:55:03,438 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:55:03,438 INFO L912 BasicCegarLoop]: 223 mSDtfsCounter, 52 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:55:03,438 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 577 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:55:03,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2022-03-19 13:55:03,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1055. [2022-03-19 13:55:03,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 1050 states have (on average 1.477142857142857) internal successors, (1551), 1050 states have internal predecessors, (1551), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1555 transitions. [2022-03-19 13:55:03,501 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1555 transitions. Word has length 157 [2022-03-19 13:55:03,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:55:03,501 INFO L478 AbstractCegarLoop]: Abstraction has 1055 states and 1555 transitions. [2022-03-19 13:55:03,501 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:03,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1555 transitions. [2022-03-19 13:55:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-19 13:55:03,503 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:55:03,503 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:55:03,503 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-19 13:55:03,503 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:55:03,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:55:03,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1829388721, now seen corresponding path program 1 times [2022-03-19 13:55:03,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:03,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1056263047] [2022-03-19 13:55:03,531 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:55:03,531 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:55:03,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1829388721, now seen corresponding path program 2 times [2022-03-19 13:55:03,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:55:03,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028880393] [2022-03-19 13:55:03,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:55:03,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:55:03,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:03,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:55:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:03,628 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-19 13:55:03,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:55:03,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028880393] [2022-03-19 13:55:03,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028880393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:03,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:03,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:03,629 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:55:03,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1056263047] [2022-03-19 13:55:03,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1056263047] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:03,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:03,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:03,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73034069] [2022-03-19 13:55:03,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:55:03,630 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:55:03,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:03,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:55:03,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:55:03,630 INFO L87 Difference]: Start difference. First operand 1055 states and 1555 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:04,970 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:06,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:08,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:10,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:11,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:55:11,269 INFO L93 Difference]: Finished difference Result 2139 states and 3152 transitions. [2022-03-19 13:55:11,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:55:11,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-19 13:55:11,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:55:11,273 INFO L225 Difference]: With dead ends: 2139 [2022-03-19 13:55:11,273 INFO L226 Difference]: Without dead ends: 1110 [2022-03-19 13:55:11,275 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:55:11,275 INFO L912 BasicCegarLoop]: 224 mSDtfsCounter, 47 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-03-19 13:55:11,275 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 579 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 482 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-03-19 13:55:11,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2022-03-19 13:55:11,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1057. [2022-03-19 13:55:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1052 states have (on average 1.476235741444867) internal successors, (1553), 1052 states have internal predecessors, (1553), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:11,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1557 transitions. [2022-03-19 13:55:11,362 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1557 transitions. Word has length 158 [2022-03-19 13:55:11,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:55:11,363 INFO L478 AbstractCegarLoop]: Abstraction has 1057 states and 1557 transitions. [2022-03-19 13:55:11,363 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:11,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1557 transitions. [2022-03-19 13:55:11,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-19 13:55:11,364 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:55:11,364 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:55:11,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-19 13:55:11,365 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:55:11,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:55:11,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1214896791, now seen corresponding path program 1 times [2022-03-19 13:55:11,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:11,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1135731128] [2022-03-19 13:55:11,379 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:55:11,380 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:55:11,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1214896791, now seen corresponding path program 2 times [2022-03-19 13:55:11,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:55:11,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619316565] [2022-03-19 13:55:11,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:55:11,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:55:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:11,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:55:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:11,468 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-03-19 13:55:11,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:55:11,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619316565] [2022-03-19 13:55:11,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619316565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:11,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:11,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:11,469 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:55:11,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1135731128] [2022-03-19 13:55:11,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1135731128] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:11,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:11,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:11,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003839767] [2022-03-19 13:55:11,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:55:11,469 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:55:11,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:11,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:55:11,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:55:11,470 INFO L87 Difference]: Start difference. First operand 1057 states and 1557 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:13,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:13,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:55:13,943 INFO L93 Difference]: Finished difference Result 2167 states and 3196 transitions. [2022-03-19 13:55:13,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:55:13,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-03-19 13:55:13,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:55:13,947 INFO L225 Difference]: With dead ends: 2167 [2022-03-19 13:55:13,947 INFO L226 Difference]: Without dead ends: 1136 [2022-03-19 13:55:13,948 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:55:13,948 INFO L912 BasicCegarLoop]: 254 mSDtfsCounter, 29 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:55:13,949 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 637 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 454 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:55:13,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-03-19 13:55:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1109. [2022-03-19 13:55:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 1104 states have (on average 1.473731884057971) internal successors, (1627), 1104 states have internal predecessors, (1627), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:14,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1631 transitions. [2022-03-19 13:55:14,024 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1631 transitions. Word has length 168 [2022-03-19 13:55:14,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:55:14,024 INFO L478 AbstractCegarLoop]: Abstraction has 1109 states and 1631 transitions. [2022-03-19 13:55:14,024 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:14,024 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1631 transitions. [2022-03-19 13:55:14,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-19 13:55:14,026 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:55:14,026 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:55:14,026 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-19 13:55:14,026 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:55:14,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:55:14,026 INFO L85 PathProgramCache]: Analyzing trace with hash -259499243, now seen corresponding path program 1 times [2022-03-19 13:55:14,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:14,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [605405115] [2022-03-19 13:55:14,054 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:55:14,054 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:55:14,055 INFO L85 PathProgramCache]: Analyzing trace with hash -259499243, now seen corresponding path program 2 times [2022-03-19 13:55:14,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:55:14,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745284913] [2022-03-19 13:55:14,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:55:14,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:55:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:14,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:55:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:14,128 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-03-19 13:55:14,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:55:14,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745284913] [2022-03-19 13:55:14,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745284913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:14,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:14,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:55:14,129 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:55:14,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [605405115] [2022-03-19 13:55:14,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [605405115] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:14,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:14,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:55:14,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385066431] [2022-03-19 13:55:14,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:55:14,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:55:14,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:55:14,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:55:14,131 INFO L87 Difference]: Start difference. First operand 1109 states and 1631 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:15,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:17,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:19,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:20,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:55:20,223 INFO L93 Difference]: Finished difference Result 2219 states and 3269 transitions. [2022-03-19 13:55:20,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:55:20,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 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 173 [2022-03-19 13:55:20,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:55:20,226 INFO L225 Difference]: With dead ends: 2219 [2022-03-19 13:55:20,226 INFO L226 Difference]: Without dead ends: 1136 [2022-03-19 13:55:20,228 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:55:20,228 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-03-19 13:55:20,228 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 433 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 280 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-03-19 13:55:20,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2022-03-19 13:55:20,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1136. [2022-03-19 13:55:20,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1131 states have (on average 1.469496021220159) internal successors, (1662), 1131 states have internal predecessors, (1662), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:20,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1666 transitions. [2022-03-19 13:55:20,297 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1666 transitions. Word has length 173 [2022-03-19 13:55:20,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:55:20,297 INFO L478 AbstractCegarLoop]: Abstraction has 1136 states and 1666 transitions. [2022-03-19 13:55:20,297 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:20,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1666 transitions. [2022-03-19 13:55:20,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-19 13:55:20,299 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:55:20,299 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:55:20,299 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-19 13:55:20,299 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:55:20,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:55:20,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1671626391, now seen corresponding path program 1 times [2022-03-19 13:55:20,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:20,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1712004245] [2022-03-19 13:55:20,319 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:55:20,319 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:55:20,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1671626391, now seen corresponding path program 2 times [2022-03-19 13:55:20,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:55:20,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751096735] [2022-03-19 13:55:20,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:55:20,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:55:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:20,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:55:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-03-19 13:55:20,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:55:20,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751096735] [2022-03-19 13:55:20,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751096735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:20,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:20,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:55:20,410 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:55:20,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1712004245] [2022-03-19 13:55:20,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1712004245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:20,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:20,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:55:20,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486545120] [2022-03-19 13:55:20,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:55:20,410 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:55:20,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:20,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:55:20,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:55:20,411 INFO L87 Difference]: Start difference. First operand 1136 states and 1666 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:22,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:22,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:55:22,771 INFO L93 Difference]: Finished difference Result 2248 states and 3305 transitions. [2022-03-19 13:55:22,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:55:22,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-19 13:55:22,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:55:22,775 INFO L225 Difference]: With dead ends: 2248 [2022-03-19 13:55:22,775 INFO L226 Difference]: Without dead ends: 1138 [2022-03-19 13:55:22,777 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:55:22,777 INFO L912 BasicCegarLoop]: 227 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:55:22,777 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 412 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:55:22,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-03-19 13:55:22,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1138. [2022-03-19 13:55:22,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1133 states have (on average 1.4686672550750222) internal successors, (1664), 1133 states have internal predecessors, (1664), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:22,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1668 transitions. [2022-03-19 13:55:22,870 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1668 transitions. Word has length 173 [2022-03-19 13:55:22,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:55:22,871 INFO L478 AbstractCegarLoop]: Abstraction has 1138 states and 1668 transitions. [2022-03-19 13:55:22,871 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:22,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1668 transitions. [2022-03-19 13:55:22,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-19 13:55:22,872 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:55:22,872 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:55:22,873 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-19 13:55:22,873 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:55:22,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:55:22,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1928992950, now seen corresponding path program 1 times [2022-03-19 13:55:22,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:22,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [941783336] [2022-03-19 13:55:22,890 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:55:22,890 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:55:22,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1928992950, now seen corresponding path program 2 times [2022-03-19 13:55:22,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:55:22,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841531183] [2022-03-19 13:55:22,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:55:22,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:55:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:22,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:55:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:22,992 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-19 13:55:22,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:55:22,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841531183] [2022-03-19 13:55:22,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841531183] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:22,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:22,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:22,993 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:55:22,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [941783336] [2022-03-19 13:55:22,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [941783336] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:22,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:22,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:22,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522559173] [2022-03-19 13:55:22,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:55:22,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:55:22,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:22,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:55:22,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:55:22,994 INFO L87 Difference]: Start difference. First operand 1138 states and 1668 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:25,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:26,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:29,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:29,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:55:29,509 INFO L93 Difference]: Finished difference Result 2382 states and 3487 transitions. [2022-03-19 13:55:29,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:55:29,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-03-19 13:55:29,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:55:29,513 INFO L225 Difference]: With dead ends: 2382 [2022-03-19 13:55:29,513 INFO L226 Difference]: Without dead ends: 1272 [2022-03-19 13:55:29,515 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:55:29,516 INFO L912 BasicCegarLoop]: 160 mSDtfsCounter, 132 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:55:29,517 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 444 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 489 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2022-03-19 13:55:29,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-03-19 13:55:29,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1138. [2022-03-19 13:55:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1133 states have (on average 1.4527802294792587) internal successors, (1646), 1133 states have internal predecessors, (1646), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1650 transitions. [2022-03-19 13:55:29,601 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1650 transitions. Word has length 174 [2022-03-19 13:55:29,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:55:29,601 INFO L478 AbstractCegarLoop]: Abstraction has 1138 states and 1650 transitions. [2022-03-19 13:55:29,601 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1650 transitions. [2022-03-19 13:55:29,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-19 13:55:29,603 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:55:29,603 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:55:29,603 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-19 13:55:29,603 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:55:29,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:55:29,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1959276341, now seen corresponding path program 1 times [2022-03-19 13:55:29,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:29,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [707561498] [2022-03-19 13:55:29,624 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:55:29,624 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:55:29,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1959276341, now seen corresponding path program 2 times [2022-03-19 13:55:29,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:55:29,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544643148] [2022-03-19 13:55:29,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:55:29,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:55:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:29,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:55:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-03-19 13:55:29,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:55:29,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544643148] [2022-03-19 13:55:29,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544643148] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:29,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:29,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:29,742 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:55:29,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [707561498] [2022-03-19 13:55:29,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [707561498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:29,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:29,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:55:29,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818344427] [2022-03-19 13:55:29,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:55:29,742 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:55:29,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:29,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:55:29,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:55:29,744 INFO L87 Difference]: Start difference. First operand 1138 states and 1650 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:31,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:33,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:34,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:34,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:55:34,785 INFO L93 Difference]: Finished difference Result 2382 states and 3451 transitions. [2022-03-19 13:55:34,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:55:34,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 175 [2022-03-19 13:55:34,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:55:34,788 INFO L225 Difference]: With dead ends: 2382 [2022-03-19 13:55:34,788 INFO L226 Difference]: Without dead ends: 1272 [2022-03-19 13:55:34,790 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:55:34,790 INFO L912 BasicCegarLoop]: 152 mSDtfsCounter, 131 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-03-19 13:55:34,791 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 428 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-03-19 13:55:34,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2022-03-19 13:55:34,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1138. [2022-03-19 13:55:34,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1133 states have (on average 1.4368932038834952) internal successors, (1628), 1133 states have internal predecessors, (1628), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:34,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1632 transitions. [2022-03-19 13:55:34,875 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1632 transitions. Word has length 175 [2022-03-19 13:55:34,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:55:34,875 INFO L478 AbstractCegarLoop]: Abstraction has 1138 states and 1632 transitions. [2022-03-19 13:55:34,875 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:34,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1632 transitions. [2022-03-19 13:55:34,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-03-19 13:55:34,876 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:55:34,877 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:55:34,877 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-19 13:55:34,877 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:55:34,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:55:34,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1432266785, now seen corresponding path program 1 times [2022-03-19 13:55:34,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:34,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [924748865] [2022-03-19 13:55:34,896 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:55:34,896 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:55:34,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1432266785, now seen corresponding path program 2 times [2022-03-19 13:55:34,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:55:34,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771324139] [2022-03-19 13:55:34,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:55:34,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:55:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:35,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:55:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:35,213 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-19 13:55:35,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:55:35,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771324139] [2022-03-19 13:55:35,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771324139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:35,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:35,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 13:55:35,214 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:55:35,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [924748865] [2022-03-19 13:55:35,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [924748865] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:55:35,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:55:35,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 13:55:35,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500137890] [2022-03-19 13:55:35,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:55:35,214 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 13:55:35,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:35,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 13:55:35,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-19 13:55:35,215 INFO L87 Difference]: Start difference. First operand 1138 states and 1632 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-03-19 13:55:37,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:39,326 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:41,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:55:42,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:55:42,802 INFO L93 Difference]: Finished difference Result 2269 states and 3256 transitions. [2022-03-19 13:55:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 13:55:42,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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 177 [2022-03-19 13:55:42,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:55:42,811 INFO L225 Difference]: With dead ends: 2269 [2022-03-19 13:55:42,811 INFO L226 Difference]: Without dead ends: 1138 [2022-03-19 13:55:42,813 INFO L911 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 [2022-03-19 13:55:42,813 INFO L912 BasicCegarLoop]: 225 mSDtfsCounter, 7 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:55:42,813 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 922 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-03-19 13:55:42,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-03-19 13:55:42,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1138. [2022-03-19 13:55:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 1133 states have (on average 1.436010591350397) internal successors, (1627), 1133 states have internal predecessors, (1627), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:55:42,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1631 transitions. [2022-03-19 13:55:42,929 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1631 transitions. Word has length 177 [2022-03-19 13:55:42,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:55:42,929 INFO L478 AbstractCegarLoop]: Abstraction has 1138 states and 1631 transitions. [2022-03-19 13:55:42,929 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 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) [2022-03-19 13:55:42,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1631 transitions. [2022-03-19 13:55:42,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-03-19 13:55:42,931 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:55:42,931 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:55:42,932 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-19 13:55:42,932 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:55:42,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:55:42,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2080859555, now seen corresponding path program 1 times [2022-03-19 13:55:42,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:55:42,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1330405855] [2022-03-19 13:55:42,959 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:55:42,960 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:55:42,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2080859555, now seen corresponding path program 2 times [2022-03-19 13:55:42,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:55:42,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974319774] [2022-03-19 13:55:42,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:55:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:55:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:55:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:55:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 146 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-19 13:55:43,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:55:43,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974319774] [2022-03-19 13:55:43,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974319774] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 13:55:43,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74227101] [2022-03-19 13:55:43,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 13:55:43,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 13:55:43,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:55:43,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 13:55:43,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-19 13:56:12,186 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 13:56:12,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 13:56:12,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 1152 conjuncts, 232 conjunts are in the unsatisfiable core [2022-03-19 13:56:12,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 13:56:52,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:56:52,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:56:52,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:56:52,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:56:52,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:56:52,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:58:26,053 INFO L190 IndexEqualityManager]: detected not equals via solver