/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.03.i.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 01:07:53,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 01:07:53,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 01:07:53,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-07 01:07:53,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-07 01:07:53,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-07 01:07:53,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-07 01:07:53,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-07 01:07:53,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-07 01:07:53,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-07 01:07:53,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-07 01:07:53,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-07 01:07:53,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 01:07:53,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 01:07:53,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 01:07:53,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 01:07:53,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 01:07:53,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 01:07:53,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 01:07:53,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 01:07:53,223 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 01:07:53,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 01:07:53,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 01:07:53,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 01:07:53,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 01:07:53,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 01:07:53,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 01:07:53,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 01:07:53,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 01:07:53,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-04-07 01:07:53,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 01:07:53,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 01:07:53,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 01:07:53,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 01:07:53,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 01:07:53,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 01:07:53,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 01:07:53,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 01:07:53,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 01:07:53,247 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 01:07:53,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 01:07:53,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 01:07:53,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 01:07:53,247 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 01:07:53,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 01:07:53,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 01:07:53,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 01:07:53,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-07 01:07:53,248 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-07 01:07:53,248 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-07 01:07:53,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 01:07:53,248 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-04-07 01:07:53,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 01:07:53,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 01:07:53,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 01:07:53,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 01:07:53,446 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 01:07:53,446 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 01:07:53,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.03.i.cil.c [2022-04-07 01:07:53,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb123370e/a9426fc05164495eb4fe48199b3ce579/FLAGdd6c1c59a [2022-04-07 01:07:53,997 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 01:07:53,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.03.i.cil.c [2022-04-07 01:07:54,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb123370e/a9426fc05164495eb4fe48199b3ce579/FLAGdd6c1c59a [2022-04-07 01:07:54,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb123370e/a9426fc05164495eb4fe48199b3ce579 [2022-04-07 01:07:54,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 01:07:54,033 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-07 01:07:54,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 01:07:54,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 01:07:54,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 01:07:54,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e76e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54, skipping insertion in model container [2022-04-07 01:07:54,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 01:07:54,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 01:07:54,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.03.i.cil.c[72493,72506] [2022-04-07 01:07:54,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 01:07:54,389 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 01:07:54,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.03.i.cil.c[72493,72506] [2022-04-07 01:07:54,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 01:07:54,493 INFO L208 MainTranslator]: Completed translation [2022-04-07 01:07:54,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54 WrapperNode [2022-04-07 01:07:54,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 01:07:54,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 01:07:54,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 01:07:54,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 01:07:54,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 01:07:54,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 01:07:54,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 01:07:54,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 01:07:54,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54" (1/1) ... [2022-04-07 01:07:54,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 01:07:54,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 01:07:54,627 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) [2022-04-07 01:07:54,633 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 [2022-04-07 01:07:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 01:07:54,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 01:07:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 01:07:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-07 01:07:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-07 01:07:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 01:07:54,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-07 01:07:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-07 01:07:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-07 01:07:54,657 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-07 01:07:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 01:07:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 01:07:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 01:07:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 01:07:54,658 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-07 01:07:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-07 01:07:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 01:07:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-07 01:07:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-07 01:07:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-07 01:07:54,659 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 01:07:54,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 01:07:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-07 01:07:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-07 01:07:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-07 01:07:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-07 01:07:54,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 01:07:54,777 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 01:07:54,779 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 01:07:57,123 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-07 01:07:57,460 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-07 01:07:57,460 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-07 01:07:57,468 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 01:07:57,473 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 01:07:57,474 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 01:07:57,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 01:07:57 BoogieIcfgContainer [2022-04-07 01:07:57,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 01:07:57,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 01:07:57,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 01:07:57,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 01:07:57,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 01:07:54" (1/3) ... [2022-04-07 01:07:57,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5f631a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 01:07:57, skipping insertion in model container [2022-04-07 01:07:57,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 01:07:54" (2/3) ... [2022-04-07 01:07:57,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5f631a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 01:07:57, skipping insertion in model container [2022-04-07 01:07:57,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 01:07:57" (3/3) ... [2022-04-07 01:07:57,480 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.03.i.cil.c [2022-04-07 01:07:57,483 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-07 01:07:57,483 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 01:07:57,543 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 01:07:57,547 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 [2022-04-07 01:07:57,547 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 01:07:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-07 01:07:57,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-04-07 01:07:57,566 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:07:57,566 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:07:57,566 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:07:57,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:07:57,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1104936065, now seen corresponding path program 1 times [2022-04-07 01:07:57,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:07:57,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1541922604] [2022-04-07 01:07:57,593 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-07 01:07:57,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1104936065, now seen corresponding path program 2 times [2022-04-07 01:07:57,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:07:57,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806849915] [2022-04-07 01:07:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:07:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:07:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:07:57,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:07:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:07:58,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:07:58,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:07:58,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806849915] [2022-04-07 01:07:58,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806849915] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:07:58,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:07:58,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:07:58,020 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:07:58,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1541922604] [2022-04-07 01:07:58,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1541922604] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:07:58,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:07:58,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:07:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673204923] [2022-04-07 01:07:58,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:07:58,024 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:07:58,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:07:58,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:07:58,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:07:58,049 INFO L87 Difference]: Start difference. First operand has 153 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:00,087 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 [] [2022-04-07 01:08:00,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:00,625 INFO L93 Difference]: Finished difference Result 324 states and 540 transitions. [2022-04-07 01:08:00,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:00,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-04-07 01:08:00,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:00,637 INFO L225 Difference]: With dead ends: 324 [2022-04-07 01:08:00,637 INFO L226 Difference]: Without dead ends: 165 [2022-04-07 01:08:00,640 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:00,645 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 34 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:00,645 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 577 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 401 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-07 01:08:00,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-04-07 01:08:00,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-04-07 01:08:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5384615384615385) internal successors, (220), 143 states have internal predecessors, (220), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 224 transitions. [2022-04-07 01:08:00,729 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 224 transitions. Word has length 52 [2022-04-07 01:08:00,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:00,730 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 224 transitions. [2022-04-07 01:08:00,730 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 224 transitions. [2022-04-07 01:08:00,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-07 01:08:00,731 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:00,731 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:00,732 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 01:08:00,732 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:00,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:00,732 INFO L85 PathProgramCache]: Analyzing trace with hash 133985870, now seen corresponding path program 1 times [2022-04-07 01:08:00,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:00,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [762581645] [2022-04-07 01:08:00,742 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:00,742 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:00,743 INFO L85 PathProgramCache]: Analyzing trace with hash 133985870, now seen corresponding path program 2 times [2022-04-07 01:08:00,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:00,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862471195] [2022-04-07 01:08:00,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:00,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:00,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:00,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:00,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862471195] [2022-04-07 01:08:00,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862471195] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:00,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:00,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:00,953 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:00,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [762581645] [2022-04-07 01:08:00,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [762581645] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:00,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:00,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:00,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64649225] [2022-04-07 01:08:00,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:00,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:00,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:00,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:00,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:00,955 INFO L87 Difference]: Start difference. First operand 148 states and 224 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:02,965 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 [] [2022-04-07 01:08:03,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:03,313 INFO L93 Difference]: Finished difference Result 287 states and 431 transitions. [2022-04-07 01:08:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:03,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-07 01:08:03,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:03,315 INFO L225 Difference]: With dead ends: 287 [2022-04-07 01:08:03,315 INFO L226 Difference]: Without dead ends: 165 [2022-04-07 01:08:03,316 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:03,316 INFO L913 BasicCegarLoop]: 177 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:03,317 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 453 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-04-07 01:08:03,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 148. [2022-04-07 01:08:03,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5314685314685315) internal successors, (219), 143 states have internal predecessors, (219), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:03,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 223 transitions. [2022-04-07 01:08:03,326 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 223 transitions. Word has length 65 [2022-04-07 01:08:03,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:03,326 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 223 transitions. [2022-04-07 01:08:03,327 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:03,327 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 223 transitions. [2022-04-07 01:08:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-07 01:08:03,328 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:03,328 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:03,328 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 01:08:03,328 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:03,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:03,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1027752574, now seen corresponding path program 1 times [2022-04-07 01:08:03,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:03,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1081543389] [2022-04-07 01:08:03,335 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:03,335 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:03,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1027752574, now seen corresponding path program 2 times [2022-04-07 01:08:03,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:03,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485568818] [2022-04-07 01:08:03,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:03,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:03,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:03,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:03,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485568818] [2022-04-07 01:08:03,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485568818] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:03,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:03,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:03,432 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:03,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1081543389] [2022-04-07 01:08:03,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1081543389] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:03,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:03,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:03,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824932642] [2022-04-07 01:08:03,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:03,433 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:03,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:03,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:03,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:03,434 INFO L87 Difference]: Start difference. First operand 148 states and 223 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:05,456 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 [] [2022-04-07 01:08:05,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:05,867 INFO L93 Difference]: Finished difference Result 286 states and 429 transitions. [2022-04-07 01:08:05,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:05,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-07 01:08:05,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:05,869 INFO L225 Difference]: With dead ends: 286 [2022-04-07 01:08:05,869 INFO L226 Difference]: Without dead ends: 164 [2022-04-07 01:08:05,870 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:05,870 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:05,871 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:05,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-04-07 01:08:05,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-04-07 01:08:05,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5244755244755244) internal successors, (218), 143 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 222 transitions. [2022-04-07 01:08:05,879 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 222 transitions. Word has length 66 [2022-04-07 01:08:05,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:05,879 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 222 transitions. [2022-04-07 01:08:05,879 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) [2022-04-07 01:08:05,879 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 222 transitions. [2022-04-07 01:08:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-07 01:08:05,880 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:05,881 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:05,881 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-07 01:08:05,881 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:05,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:05,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1865763346, now seen corresponding path program 1 times [2022-04-07 01:08:05,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:05,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1537297165] [2022-04-07 01:08:05,891 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 01:08:05,891 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:05,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1865763346, now seen corresponding path program 2 times [2022-04-07 01:08:05,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:05,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126525698] [2022-04-07 01:08:05,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:05,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:06,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:06,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:06,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126525698] [2022-04-07 01:08:06,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126525698] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:06,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:06,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:06,019 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:06,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1537297165] [2022-04-07 01:08:06,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1537297165] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:06,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:06,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:06,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500031225] [2022-04-07 01:08:06,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:06,021 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:06,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:06,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:06,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:06,024 INFO L87 Difference]: Start difference. First operand 148 states and 222 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:08,037 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 [] [2022-04-07 01:08:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:08,364 INFO L93 Difference]: Finished difference Result 286 states and 428 transitions. [2022-04-07 01:08:08,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:08,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-07 01:08:08,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:08,366 INFO L225 Difference]: With dead ends: 286 [2022-04-07 01:08:08,366 INFO L226 Difference]: Without dead ends: 164 [2022-04-07 01:08:08,367 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:08,367 INFO L913 BasicCegarLoop]: 178 mSDtfsCounter, 26 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:08,368 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 455 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 348 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:08,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-04-07 01:08:08,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 148. [2022-04-07 01:08:08,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5174825174825175) internal successors, (217), 143 states have internal predecessors, (217), 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) [2022-04-07 01:08:08,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 221 transitions. [2022-04-07 01:08:08,374 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 221 transitions. Word has length 66 [2022-04-07 01:08:08,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:08,374 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 221 transitions. [2022-04-07 01:08:08,375 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) [2022-04-07 01:08:08,375 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 221 transitions. [2022-04-07 01:08:08,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-07 01:08:08,375 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:08,376 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:08,376 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-07 01:08:08,376 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:08,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:08,376 INFO L85 PathProgramCache]: Analyzing trace with hash -354488375, now seen corresponding path program 1 times [2022-04-07 01:08:08,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:08,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1420311560] [2022-04-07 01:08:08,380 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:08,380 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash -354488375, now seen corresponding path program 2 times [2022-04-07 01:08:08,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:08,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998158421] [2022-04-07 01:08:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:08,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:08,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:08,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:08,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998158421] [2022-04-07 01:08:08,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998158421] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:08,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:08,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:08,462 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:08,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1420311560] [2022-04-07 01:08:08,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1420311560] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:08,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:08,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:08,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683027871] [2022-04-07 01:08:08,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:08,463 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:08,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:08,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:08,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:08,464 INFO L87 Difference]: Start difference. First operand 148 states and 221 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) [2022-04-07 01:08:10,471 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 [] [2022-04-07 01:08:10,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:10,824 INFO L93 Difference]: Finished difference Result 284 states and 425 transitions. [2022-04-07 01:08:10,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:10,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-07 01:08:10,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:10,825 INFO L225 Difference]: With dead ends: 284 [2022-04-07 01:08:10,825 INFO L226 Difference]: Without dead ends: 162 [2022-04-07 01:08:10,826 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:10,826 INFO L913 BasicCegarLoop]: 180 mSDtfsCounter, 20 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:10,827 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 459 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 344 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-04-07 01:08:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 148. [2022-04-07 01:08:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5104895104895104) internal successors, (216), 143 states have internal predecessors, (216), 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) [2022-04-07 01:08:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 220 transitions. [2022-04-07 01:08:10,834 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 220 transitions. Word has length 66 [2022-04-07 01:08:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:10,834 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 220 transitions. [2022-04-07 01:08:10,834 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) [2022-04-07 01:08:10,834 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 220 transitions. [2022-04-07 01:08:10,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-07 01:08:10,835 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:10,835 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:10,835 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-07 01:08:10,835 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:10,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:10,836 INFO L85 PathProgramCache]: Analyzing trace with hash 146163146, now seen corresponding path program 1 times [2022-04-07 01:08:10,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:10,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [389742932] [2022-04-07 01:08:10,838 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:10,838 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:10,838 INFO L85 PathProgramCache]: Analyzing trace with hash 146163146, now seen corresponding path program 2 times [2022-04-07 01:08:10,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:10,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922706747] [2022-04-07 01:08:10,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:10,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:10,957 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:10,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:10,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922706747] [2022-04-07 01:08:10,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922706747] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:10,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:10,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:10,958 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:10,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [389742932] [2022-04-07 01:08:10,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [389742932] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:10,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:10,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:10,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571415740] [2022-04-07 01:08:10,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:10,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:10,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:10,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:10,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:10,960 INFO L87 Difference]: Start difference. First operand 148 states and 220 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) [2022-04-07 01:08:12,970 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 [] [2022-04-07 01:08:13,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:13,324 INFO L93 Difference]: Finished difference Result 283 states and 423 transitions. [2022-04-07 01:08:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:13,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-07 01:08:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:13,325 INFO L225 Difference]: With dead ends: 283 [2022-04-07 01:08:13,326 INFO L226 Difference]: Without dead ends: 161 [2022-04-07 01:08:13,326 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:13,327 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 18 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:13,327 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:13,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-04-07 01:08:13,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 148. [2022-04-07 01:08:13,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.5034965034965035) internal successors, (215), 143 states have internal predecessors, (215), 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) [2022-04-07 01:08:13,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 219 transitions. [2022-04-07 01:08:13,336 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 219 transitions. Word has length 66 [2022-04-07 01:08:13,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:13,336 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 219 transitions. [2022-04-07 01:08:13,336 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) [2022-04-07 01:08:13,336 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 219 transitions. [2022-04-07 01:08:13,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-07 01:08:13,336 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:13,337 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:13,337 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-07 01:08:13,337 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:13,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:13,337 INFO L85 PathProgramCache]: Analyzing trace with hash -674199881, now seen corresponding path program 1 times [2022-04-07 01:08:13,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:13,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1631571313] [2022-04-07 01:08:13,341 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 01:08:13,341 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:13,341 INFO L85 PathProgramCache]: Analyzing trace with hash -674199881, now seen corresponding path program 2 times [2022-04-07 01:08:13,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:13,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68944388] [2022-04-07 01:08:13,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:13,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:13,463 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:13,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:13,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68944388] [2022-04-07 01:08:13,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68944388] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:13,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:13,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:13,465 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:13,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1631571313] [2022-04-07 01:08:13,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1631571313] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:13,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:13,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:13,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604076481] [2022-04-07 01:08:13,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:13,466 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:13,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:13,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:13,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:13,466 INFO L87 Difference]: Start difference. First operand 148 states and 219 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) [2022-04-07 01:08:15,474 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 [] [2022-04-07 01:08:15,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:15,791 INFO L93 Difference]: Finished difference Result 283 states and 422 transitions. [2022-04-07 01:08:15,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:15,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-07 01:08:15,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:15,792 INFO L225 Difference]: With dead ends: 283 [2022-04-07 01:08:15,792 INFO L226 Difference]: Without dead ends: 161 [2022-04-07 01:08:15,793 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:15,793 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 22 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:15,793 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:15,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-04-07 01:08:15,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 148. [2022-04-07 01:08:15,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.4965034965034965) internal successors, (214), 143 states have internal predecessors, (214), 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) [2022-04-07 01:08:15,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 218 transitions. [2022-04-07 01:08:15,798 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 218 transitions. Word has length 67 [2022-04-07 01:08:15,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:15,798 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 218 transitions. [2022-04-07 01:08:15,798 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) [2022-04-07 01:08:15,799 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 218 transitions. [2022-04-07 01:08:15,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-07 01:08:15,799 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:15,799 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:15,799 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-07 01:08:15,799 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:15,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:15,800 INFO L85 PathProgramCache]: Analyzing trace with hash -2142445385, now seen corresponding path program 1 times [2022-04-07 01:08:15,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:15,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [279505961] [2022-04-07 01:08:15,803 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 01:08:15,803 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:15,803 INFO L85 PathProgramCache]: Analyzing trace with hash -2142445385, now seen corresponding path program 2 times [2022-04-07 01:08:15,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:15,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947750283] [2022-04-07 01:08:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:15,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:15,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:15,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:15,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947750283] [2022-04-07 01:08:15,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947750283] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:15,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:15,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:15,896 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:15,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [279505961] [2022-04-07 01:08:15,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [279505961] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:15,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:15,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:15,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151420293] [2022-04-07 01:08:15,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:15,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:15,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:15,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:15,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:15,897 INFO L87 Difference]: Start difference. First operand 148 states and 218 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) [2022-04-07 01:08:17,911 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 [] [2022-04-07 01:08:18,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:18,237 INFO L93 Difference]: Finished difference Result 283 states and 421 transitions. [2022-04-07 01:08:18,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:18,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-07 01:08:18,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:18,239 INFO L225 Difference]: With dead ends: 283 [2022-04-07 01:08:18,239 INFO L226 Difference]: Without dead ends: 161 [2022-04-07 01:08:18,239 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:18,239 INFO L913 BasicCegarLoop]: 181 mSDtfsCounter, 20 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:18,240 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:18,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-04-07 01:08:18,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 148. [2022-04-07 01:08:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.4895104895104896) internal successors, (213), 143 states have internal predecessors, (213), 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) [2022-04-07 01:08:18,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 217 transitions. [2022-04-07 01:08:18,244 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 217 transitions. Word has length 68 [2022-04-07 01:08:18,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:18,244 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 217 transitions. [2022-04-07 01:08:18,244 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) [2022-04-07 01:08:18,244 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 217 transitions. [2022-04-07 01:08:18,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-07 01:08:18,244 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:18,244 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:18,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-07 01:08:18,245 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:18,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:18,245 INFO L85 PathProgramCache]: Analyzing trace with hash -452212548, now seen corresponding path program 1 times [2022-04-07 01:08:18,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:18,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [419781561] [2022-04-07 01:08:18,248 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Cannot deal with arrays. [2022-04-07 01:08:18,249 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:18,249 INFO L85 PathProgramCache]: Analyzing trace with hash -452212548, now seen corresponding path program 2 times [2022-04-07 01:08:18,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:18,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519740802] [2022-04-07 01:08:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:18,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:18,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519740802] [2022-04-07 01:08:18,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519740802] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:18,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:18,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:18,334 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:18,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [419781561] [2022-04-07 01:08:18,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [419781561] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:18,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:18,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:18,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345509552] [2022-04-07 01:08:18,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:18,335 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:18,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:18,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:18,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:18,335 INFO L87 Difference]: Start difference. First operand 148 states and 217 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) [2022-04-07 01:08:20,351 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 [] [2022-04-07 01:08:20,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:20,639 INFO L93 Difference]: Finished difference Result 273 states and 407 transitions. [2022-04-07 01:08:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:20,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-04-07 01:08:20,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:20,640 INFO L225 Difference]: With dead ends: 273 [2022-04-07 01:08:20,640 INFO L226 Difference]: Without dead ends: 151 [2022-04-07 01:08:20,641 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:20,641 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 11 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:20,641 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 475 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:20,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-04-07 01:08:20,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 148. [2022-04-07 01:08:20,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 143 states have (on average 1.4825174825174825) internal successors, (212), 143 states have internal predecessors, (212), 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) [2022-04-07 01:08:20,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 216 transitions. [2022-04-07 01:08:20,645 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 216 transitions. Word has length 69 [2022-04-07 01:08:20,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:20,646 INFO L478 AbstractCegarLoop]: Abstraction has 148 states and 216 transitions. [2022-04-07 01:08:20,646 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) [2022-04-07 01:08:20,646 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 216 transitions. [2022-04-07 01:08:20,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-04-07 01:08:20,646 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:20,646 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:20,646 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-07 01:08:20,646 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:20,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:20,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1752801627, now seen corresponding path program 1 times [2022-04-07 01:08:20,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:20,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1864763369] [2022-04-07 01:08:20,650 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:20,650 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:20,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1752801627, now seen corresponding path program 2 times [2022-04-07 01:08:20,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:20,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364313713] [2022-04-07 01:08:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:20,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:20,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:20,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:20,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364313713] [2022-04-07 01:08:20,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364313713] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:20,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:20,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:20,753 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:20,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1864763369] [2022-04-07 01:08:20,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1864763369] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:20,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:20,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:20,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478776949] [2022-04-07 01:08:20,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:20,753 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:20,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:20,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:20,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:20,754 INFO L87 Difference]: Start difference. First operand 148 states and 216 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) [2022-04-07 01:08:22,761 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 [] [2022-04-07 01:08:23,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:23,195 INFO L93 Difference]: Finished difference Result 384 states and 578 transitions. [2022-04-07 01:08:23,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:23,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2022-04-07 01:08:23,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:23,196 INFO L225 Difference]: With dead ends: 384 [2022-04-07 01:08:23,196 INFO L226 Difference]: Without dead ends: 262 [2022-04-07 01:08:23,197 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:23,197 INFO L913 BasicCegarLoop]: 107 mSDtfsCounter, 110 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:23,197 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 313 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-04-07 01:08:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 191. [2022-04-07 01:08:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.5698924731182795) internal successors, (292), 186 states have internal predecessors, (292), 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) [2022-04-07 01:08:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 296 transitions. [2022-04-07 01:08:23,203 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 296 transitions. Word has length 69 [2022-04-07 01:08:23,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:23,203 INFO L478 AbstractCegarLoop]: Abstraction has 191 states and 296 transitions. [2022-04-07 01:08:23,204 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) [2022-04-07 01:08:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 296 transitions. [2022-04-07 01:08:23,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-04-07 01:08:23,204 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:23,204 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:23,204 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-07 01:08:23,204 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:23,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1490539961, now seen corresponding path program 1 times [2022-04-07 01:08:23,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:23,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1570493149] [2022-04-07 01:08:23,208 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:23,208 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:23,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1490539961, now seen corresponding path program 2 times [2022-04-07 01:08:23,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:23,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928821485] [2022-04-07 01:08:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:23,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:23,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:23,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:23,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928821485] [2022-04-07 01:08:23,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928821485] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:23,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:23,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:23,303 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:23,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1570493149] [2022-04-07 01:08:23,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1570493149] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:23,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:23,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:23,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548734034] [2022-04-07 01:08:23,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:23,303 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:23,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:23,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:23,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:23,304 INFO L87 Difference]: Start difference. First operand 191 states and 296 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) [2022-04-07 01:08:25,312 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 [] [2022-04-07 01:08:25,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:25,652 INFO L93 Difference]: Finished difference Result 399 states and 628 transitions. [2022-04-07 01:08:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:25,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2022-04-07 01:08:25,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:25,654 INFO L225 Difference]: With dead ends: 399 [2022-04-07 01:08:25,654 INFO L226 Difference]: Without dead ends: 234 [2022-04-07 01:08:25,654 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:25,655 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 34 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:25,655 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 473 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:25,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-04-07 01:08:25,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 213. [2022-04-07 01:08:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5865384615384615) internal successors, (330), 208 states have internal predecessors, (330), 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) [2022-04-07 01:08:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 334 transitions. [2022-04-07 01:08:25,661 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 334 transitions. Word has length 70 [2022-04-07 01:08:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:25,661 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 334 transitions. [2022-04-07 01:08:25,661 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) [2022-04-07 01:08:25,661 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 334 transitions. [2022-04-07 01:08:25,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-07 01:08:25,662 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:25,662 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:25,662 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-07 01:08:25,662 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:25,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:25,662 INFO L85 PathProgramCache]: Analyzing trace with hash 308122582, now seen corresponding path program 1 times [2022-04-07 01:08:25,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:25,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [93906092] [2022-04-07 01:08:25,668 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:25,668 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:25,668 INFO L85 PathProgramCache]: Analyzing trace with hash 308122582, now seen corresponding path program 2 times [2022-04-07 01:08:25,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:25,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392644524] [2022-04-07 01:08:25,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:25,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:25,742 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:25,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:25,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392644524] [2022-04-07 01:08:25,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392644524] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:25,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:25,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:25,743 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:25,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [93906092] [2022-04-07 01:08:25,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [93906092] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:25,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:25,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:25,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422793016] [2022-04-07 01:08:25,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:25,743 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:25,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:25,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:25,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:25,744 INFO L87 Difference]: Start difference. First operand 213 states and 334 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) [2022-04-07 01:08:27,763 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 [] [2022-04-07 01:08:28,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:28,137 INFO L93 Difference]: Finished difference Result 421 states and 665 transitions. [2022-04-07 01:08:28,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:28,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-07 01:08:28,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:28,139 INFO L225 Difference]: With dead ends: 421 [2022-04-07 01:08:28,139 INFO L226 Difference]: Without dead ends: 234 [2022-04-07 01:08:28,139 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:28,140 INFO L913 BasicCegarLoop]: 185 mSDtfsCounter, 39 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:28,140 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 473 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 383 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:28,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-04-07 01:08:28,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 213. [2022-04-07 01:08:28,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 208 states have (on average 1.5817307692307692) internal successors, (329), 208 states have internal predecessors, (329), 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) [2022-04-07 01:08:28,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 333 transitions. [2022-04-07 01:08:28,147 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 333 transitions. Word has length 83 [2022-04-07 01:08:28,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:28,147 INFO L478 AbstractCegarLoop]: Abstraction has 213 states and 333 transitions. [2022-04-07 01:08:28,147 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) [2022-04-07 01:08:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 333 transitions. [2022-04-07 01:08:28,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-07 01:08:28,172 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:28,172 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:28,172 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-07 01:08:28,172 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:28,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:28,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1233411814, now seen corresponding path program 1 times [2022-04-07 01:08:28,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:28,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [623649738] [2022-04-07 01:08:28,181 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:28,181 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:28,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1233411814, now seen corresponding path program 2 times [2022-04-07 01:08:28,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:28,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083675425] [2022-04-07 01:08:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:28,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:28,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:28,270 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-07 01:08:28,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:28,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083675425] [2022-04-07 01:08:28,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083675425] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:28,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:28,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:28,271 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:28,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [623649738] [2022-04-07 01:08:28,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [623649738] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:28,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:28,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:28,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972229808] [2022-04-07 01:08:28,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:28,272 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:28,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:28,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:28,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:28,272 INFO L87 Difference]: Start difference. First operand 213 states and 333 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:30,029 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 [] [2022-04-07 01:08:32,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:34,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:36,111 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 [] [2022-04-07 01:08:36,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:36,497 INFO L93 Difference]: Finished difference Result 429 states and 679 transitions. [2022-04-07 01:08:36,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:36,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-04-07 01:08:36,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:36,498 INFO L225 Difference]: With dead ends: 429 [2022-04-07 01:08:36,498 INFO L226 Difference]: Without dead ends: 242 [2022-04-07 01:08:36,499 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:36,499 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 22 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:36,499 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 548 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 389 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2022-04-07 01:08:36,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-04-07 01:08:36,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 229. [2022-04-07 01:08:36,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 224 states have (on average 1.5848214285714286) internal successors, (355), 224 states have internal predecessors, (355), 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) [2022-04-07 01:08:36,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 359 transitions. [2022-04-07 01:08:36,505 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 359 transitions. Word has length 84 [2022-04-07 01:08:36,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:36,505 INFO L478 AbstractCegarLoop]: Abstraction has 229 states and 359 transitions. [2022-04-07 01:08:36,505 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 359 transitions. [2022-04-07 01:08:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-07 01:08:36,506 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:36,506 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:36,506 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-07 01:08:36,506 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:36,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:36,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1133208273, now seen corresponding path program 1 times [2022-04-07 01:08:36,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:36,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [915462255] [2022-04-07 01:08:36,513 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:36,513 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:36,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1133208273, now seen corresponding path program 2 times [2022-04-07 01:08:36,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:36,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092469825] [2022-04-07 01:08:36,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:36,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:36,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:36,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:36,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092469825] [2022-04-07 01:08:36,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092469825] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:36,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:36,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:36,601 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:36,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [915462255] [2022-04-07 01:08:36,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [915462255] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:36,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:36,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:36,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535058446] [2022-04-07 01:08:36,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:36,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:36,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:36,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:36,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:36,602 INFO L87 Difference]: Start difference. First operand 229 states and 359 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) [2022-04-07 01:08:38,610 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 [] [2022-04-07 01:08:38,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:38,946 INFO L93 Difference]: Finished difference Result 451 states and 713 transitions. [2022-04-07 01:08:38,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:38,946 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-04-07 01:08:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:38,947 INFO L225 Difference]: With dead ends: 451 [2022-04-07 01:08:38,947 INFO L226 Difference]: Without dead ends: 248 [2022-04-07 01:08:38,948 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:38,948 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 37 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:38,949 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 477 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:38,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-04-07 01:08:38,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 229. [2022-04-07 01:08:38,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 224 states have (on average 1.5803571428571428) internal successors, (354), 224 states have internal predecessors, (354), 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) [2022-04-07 01:08:38,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 358 transitions. [2022-04-07 01:08:38,955 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 358 transitions. Word has length 84 [2022-04-07 01:08:38,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:38,955 INFO L478 AbstractCegarLoop]: Abstraction has 229 states and 358 transitions. [2022-04-07 01:08:38,955 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) [2022-04-07 01:08:38,955 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 358 transitions. [2022-04-07 01:08:38,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-07 01:08:38,956 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:38,956 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:38,956 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-07 01:08:38,956 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:38,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:38,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1502086990, now seen corresponding path program 1 times [2022-04-07 01:08:38,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:38,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1813165764] [2022-04-07 01:08:38,961 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:38,961 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:38,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1502086990, now seen corresponding path program 2 times [2022-04-07 01:08:38,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:38,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706167446] [2022-04-07 01:08:38,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:38,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:39,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:39,064 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:39,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:39,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706167446] [2022-04-07 01:08:39,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706167446] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:39,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:39,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:39,065 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:39,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1813165764] [2022-04-07 01:08:39,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1813165764] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:39,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:39,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:39,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662593064] [2022-04-07 01:08:39,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:39,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:39,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:39,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:39,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:39,066 INFO L87 Difference]: Start difference. First operand 229 states and 358 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) [2022-04-07 01:08:41,073 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 [] [2022-04-07 01:08:41,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:41,422 INFO L93 Difference]: Finished difference Result 450 states and 710 transitions. [2022-04-07 01:08:41,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:41,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-04-07 01:08:41,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:41,424 INFO L225 Difference]: With dead ends: 450 [2022-04-07 01:08:41,424 INFO L226 Difference]: Without dead ends: 247 [2022-04-07 01:08:41,424 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:41,425 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 35 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:41,425 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 479 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:41,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-04-07 01:08:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 229. [2022-04-07 01:08:41,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 224 states have (on average 1.5758928571428572) internal successors, (353), 224 states have internal predecessors, (353), 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) [2022-04-07 01:08:41,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 357 transitions. [2022-04-07 01:08:41,433 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 357 transitions. Word has length 84 [2022-04-07 01:08:41,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:41,433 INFO L478 AbstractCegarLoop]: Abstraction has 229 states and 357 transitions. [2022-04-07 01:08:41,433 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) [2022-04-07 01:08:41,433 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 357 transitions. [2022-04-07 01:08:41,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-07 01:08:41,434 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:41,434 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:41,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-07 01:08:41,434 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:41,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:41,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1487677531, now seen corresponding path program 1 times [2022-04-07 01:08:41,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:41,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [720259284] [2022-04-07 01:08:41,441 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:41,442 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:41,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1487677531, now seen corresponding path program 2 times [2022-04-07 01:08:41,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:41,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930377855] [2022-04-07 01:08:41,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:41,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:41,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-07 01:08:41,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:41,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930377855] [2022-04-07 01:08:41,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930377855] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:41,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:41,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 01:08:41,551 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:41,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [720259284] [2022-04-07 01:08:41,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [720259284] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:41,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:41,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 01:08:41,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781735218] [2022-04-07 01:08:41,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:41,552 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 01:08:41,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:41,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 01:08:41,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:41,552 INFO L87 Difference]: Start difference. First operand 229 states and 357 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:43,560 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 [] [2022-04-07 01:08:43,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:43,948 INFO L93 Difference]: Finished difference Result 441 states and 696 transitions. [2022-04-07 01:08:43,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-07 01:08:43,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-04-07 01:08:43,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:43,950 INFO L225 Difference]: With dead ends: 441 [2022-04-07 01:08:43,950 INFO L226 Difference]: Without dead ends: 238 [2022-04-07 01:08:43,950 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-07 01:08:43,951 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:43,951 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 593 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 421 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:43,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-04-07 01:08:43,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2022-04-07 01:08:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 233 states have (on average 1.5622317596566524) internal successors, (364), 233 states have internal predecessors, (364), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:43,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 368 transitions. [2022-04-07 01:08:43,957 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 368 transitions. Word has length 85 [2022-04-07 01:08:43,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:43,957 INFO L478 AbstractCegarLoop]: Abstraction has 238 states and 368 transitions. [2022-04-07 01:08:43,957 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:43,957 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 368 transitions. [2022-04-07 01:08:43,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-07 01:08:43,958 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:43,958 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:43,958 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-07 01:08:43,958 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:43,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:43,959 INFO L85 PathProgramCache]: Analyzing trace with hash 681790009, now seen corresponding path program 1 times [2022-04-07 01:08:43,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:43,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [671076008] [2022-04-07 01:08:43,965 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:43,966 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:43,966 INFO L85 PathProgramCache]: Analyzing trace with hash 681790009, now seen corresponding path program 2 times [2022-04-07 01:08:43,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:43,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325937230] [2022-04-07 01:08:43,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:43,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:44,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:44,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325937230] [2022-04-07 01:08:44,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325937230] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:44,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:44,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:44,076 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:44,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [671076008] [2022-04-07 01:08:44,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [671076008] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:44,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:44,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:44,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700406231] [2022-04-07 01:08:44,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:44,076 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:44,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:44,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:44,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:44,077 INFO L87 Difference]: Start difference. First operand 238 states and 368 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) [2022-04-07 01:08:46,085 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 [] [2022-04-07 01:08:46,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:46,501 INFO L93 Difference]: Finished difference Result 573 states and 893 transitions. [2022-04-07 01:08:46,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:46,501 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 85 [2022-04-07 01:08:46,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:46,502 INFO L225 Difference]: With dead ends: 573 [2022-04-07 01:08:46,502 INFO L226 Difference]: Without dead ends: 361 [2022-04-07 01:08:46,503 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:46,503 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 142 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:46,503 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 314 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:46,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-04-07 01:08:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 250. [2022-04-07 01:08:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.546938775510204) internal successors, (379), 245 states have internal predecessors, (379), 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) [2022-04-07 01:08:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 383 transitions. [2022-04-07 01:08:46,511 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 383 transitions. Word has length 85 [2022-04-07 01:08:46,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:46,511 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 383 transitions. [2022-04-07 01:08:46,511 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) [2022-04-07 01:08:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 383 transitions. [2022-04-07 01:08:46,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-04-07 01:08:46,512 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:46,512 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:46,512 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-07 01:08:46,512 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:46,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:46,512 INFO L85 PathProgramCache]: Analyzing trace with hash -2033895406, now seen corresponding path program 1 times [2022-04-07 01:08:46,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:46,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1709710616] [2022-04-07 01:08:46,520 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:46,520 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:46,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2033895406, now seen corresponding path program 2 times [2022-04-07 01:08:46,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:46,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479003332] [2022-04-07 01:08:46,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:46,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:46,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:46,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:46,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479003332] [2022-04-07 01:08:46,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479003332] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:46,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:46,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:46,598 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:46,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1709710616] [2022-04-07 01:08:46,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1709710616] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:46,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:46,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:46,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164142543] [2022-04-07 01:08:46,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:46,599 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:46,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:46,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:46,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:46,599 INFO L87 Difference]: Start difference. First operand 250 states and 383 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) [2022-04-07 01:08:48,607 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 [] [2022-04-07 01:08:48,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:48,938 INFO L93 Difference]: Finished difference Result 501 states and 771 transitions. [2022-04-07 01:08:48,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:48,938 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 86 [2022-04-07 01:08:48,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:48,939 INFO L225 Difference]: With dead ends: 501 [2022-04-07 01:08:48,939 INFO L226 Difference]: Without dead ends: 277 [2022-04-07 01:08:48,940 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:48,940 INFO L913 BasicCegarLoop]: 188 mSDtfsCounter, 38 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:48,940 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 479 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:08:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-04-07 01:08:48,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 250. [2022-04-07 01:08:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 245 states have (on average 1.542857142857143) internal successors, (378), 245 states have internal predecessors, (378), 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) [2022-04-07 01:08:48,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 382 transitions. [2022-04-07 01:08:48,948 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 382 transitions. Word has length 86 [2022-04-07 01:08:48,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:48,948 INFO L478 AbstractCegarLoop]: Abstraction has 250 states and 382 transitions. [2022-04-07 01:08:48,948 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) [2022-04-07 01:08:48,948 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 382 transitions. [2022-04-07 01:08:48,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-04-07 01:08:48,949 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:48,949 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:48,949 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-07 01:08:48,949 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:48,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1050188318, now seen corresponding path program 1 times [2022-04-07 01:08:48,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:48,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [668320097] [2022-04-07 01:08:48,956 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:48,956 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:48,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1050188318, now seen corresponding path program 2 times [2022-04-07 01:08:48,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:48,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935261124] [2022-04-07 01:08:48,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:48,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:49,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:49,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:49,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:49,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935261124] [2022-04-07 01:08:49,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935261124] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:49,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:49,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:49,070 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:49,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [668320097] [2022-04-07 01:08:49,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [668320097] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:49,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:49,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:49,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365551090] [2022-04-07 01:08:49,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:49,071 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:49,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:49,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:49,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:49,071 INFO L87 Difference]: Start difference. First operand 250 states and 382 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) [2022-04-07 01:08:50,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:52,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:54,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:56,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:08:56,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:56,727 INFO L93 Difference]: Finished difference Result 585 states and 902 transitions. [2022-04-07 01:08:56,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:56,727 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 87 [2022-04-07 01:08:56,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:56,728 INFO L225 Difference]: With dead ends: 585 [2022-04-07 01:08:56,729 INFO L226 Difference]: Without dead ends: 361 [2022-04-07 01:08:56,729 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:56,729 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 139 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 64 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:56,730 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 314 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 465 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-04-07 01:08:56,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-04-07 01:08:56,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 252. [2022-04-07 01:08:56,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 247 states have (on average 1.5303643724696356) internal successors, (378), 247 states have internal predecessors, (378), 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) [2022-04-07 01:08:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 382 transitions. [2022-04-07 01:08:56,737 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 382 transitions. Word has length 87 [2022-04-07 01:08:56,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:56,737 INFO L478 AbstractCegarLoop]: Abstraction has 252 states and 382 transitions. [2022-04-07 01:08:56,737 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) [2022-04-07 01:08:56,737 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 382 transitions. [2022-04-07 01:08:56,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-04-07 01:08:56,738 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:56,738 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:56,738 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-07 01:08:56,738 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:56,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:56,739 INFO L85 PathProgramCache]: Analyzing trace with hash -756478377, now seen corresponding path program 1 times [2022-04-07 01:08:56,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:56,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [46289766] [2022-04-07 01:08:56,745 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:56,745 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:56,746 INFO L85 PathProgramCache]: Analyzing trace with hash -756478377, now seen corresponding path program 2 times [2022-04-07 01:08:56,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:56,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111650568] [2022-04-07 01:08:56,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:56,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:56,825 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 01:08:56,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:56,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111650568] [2022-04-07 01:08:56,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111650568] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:56,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:56,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:56,825 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:56,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [46289766] [2022-04-07 01:08:56,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [46289766] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:56,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:56,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:56,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928315125] [2022-04-07 01:08:56,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:56,826 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:56,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:56,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:56,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:56,827 INFO L87 Difference]: Start difference. First operand 252 states and 382 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) [2022-04-07 01:08:58,849 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 [] [2022-04-07 01:08:59,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:08:59,289 INFO L93 Difference]: Finished difference Result 587 states and 898 transitions. [2022-04-07 01:08:59,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:08:59,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-04-07 01:08:59,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:08:59,291 INFO L225 Difference]: With dead ends: 587 [2022-04-07 01:08:59,291 INFO L226 Difference]: Without dead ends: 361 [2022-04-07 01:08:59,291 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:08:59,292 INFO L913 BasicCegarLoop]: 108 mSDtfsCounter, 137 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:08:59,292 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 314 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:08:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-04-07 01:08:59,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 253. [2022-04-07 01:08:59,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 248 states have (on average 1.5161290322580645) internal successors, (376), 248 states have internal predecessors, (376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:08:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 380 transitions. [2022-04-07 01:08:59,303 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 380 transitions. Word has length 88 [2022-04-07 01:08:59,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:08:59,303 INFO L478 AbstractCegarLoop]: Abstraction has 253 states and 380 transitions. [2022-04-07 01:08:59,303 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) [2022-04-07 01:08:59,303 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 380 transitions. [2022-04-07 01:08:59,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-04-07 01:08:59,304 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:08:59,304 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:08:59,304 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-07 01:08:59,304 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:08:59,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:08:59,304 INFO L85 PathProgramCache]: Analyzing trace with hash -220711809, now seen corresponding path program 1 times [2022-04-07 01:08:59,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:59,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1366788083] [2022-04-07 01:08:59,309 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:08:59,310 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:08:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash -220711809, now seen corresponding path program 2 times [2022-04-07 01:08:59,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:08:59,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502959723] [2022-04-07 01:08:59,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:08:59,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:08:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:59,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:08:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:08:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-07 01:08:59,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:08:59,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502959723] [2022-04-07 01:08:59,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502959723] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:59,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:59,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:59,394 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:08:59,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1366788083] [2022-04-07 01:08:59,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1366788083] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:08:59,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:08:59,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:08:59,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397866540] [2022-04-07 01:08:59,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:08:59,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:08:59,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:08:59,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:08:59,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:08:59,395 INFO L87 Difference]: Start difference. First operand 253 states and 380 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:02,127 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 [] [2022-04-07 01:09:04,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:09:06,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-07 01:09:06,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:09:06,615 INFO L93 Difference]: Finished difference Result 585 states and 887 transitions. [2022-04-07 01:09:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:09:06,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-04-07 01:09:06,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:09:06,617 INFO L225 Difference]: With dead ends: 585 [2022-04-07 01:09:06,617 INFO L226 Difference]: Without dead ends: 358 [2022-04-07 01:09:06,618 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:09:06,618 INFO L913 BasicCegarLoop]: 182 mSDtfsCounter, 75 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-07 01:09:06,618 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 469 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 528 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2022-04-07 01:09:06,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2022-04-07 01:09:06,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 296. [2022-04-07 01:09:06,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 291 states have (on average 1.5498281786941581) internal successors, (451), 291 states have internal predecessors, (451), 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) [2022-04-07 01:09:06,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 455 transitions. [2022-04-07 01:09:06,628 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 455 transitions. Word has length 92 [2022-04-07 01:09:06,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:09:06,628 INFO L478 AbstractCegarLoop]: Abstraction has 296 states and 455 transitions. [2022-04-07 01:09:06,628 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:06,628 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 455 transitions. [2022-04-07 01:09:06,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-04-07 01:09:06,629 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:09:06,629 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:09:06,629 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-07 01:09:06,629 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:09:06,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:09:06,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2024867645, now seen corresponding path program 1 times [2022-04-07 01:09:06,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:06,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1463559748] [2022-04-07 01:09:06,635 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:09:06,635 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:09:06,635 INFO L85 PathProgramCache]: Analyzing trace with hash 2024867645, now seen corresponding path program 2 times [2022-04-07 01:09:06,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:09:06,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636645263] [2022-04-07 01:09:06,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:09:06,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:09:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:09:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-07 01:09:06,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:09:06,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636645263] [2022-04-07 01:09:06,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636645263] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:06,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:06,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:06,724 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:09:06,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1463559748] [2022-04-07 01:09:06,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1463559748] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:06,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:06,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:06,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59553021] [2022-04-07 01:09:06,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:09:06,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:09:06,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:06,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:09:06,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:09:06,725 INFO L87 Difference]: Start difference. First operand 296 states and 455 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:08,752 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 [] [2022-04-07 01:09:09,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:09:09,153 INFO L93 Difference]: Finished difference Result 674 states and 1042 transitions. [2022-04-07 01:09:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:09:09,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-04-07 01:09:09,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:09:09,156 INFO L225 Difference]: With dead ends: 674 [2022-04-07 01:09:09,156 INFO L226 Difference]: Without dead ends: 402 [2022-04-07 01:09:09,156 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:09:09,157 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 108 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:09:09,157 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 324 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:09:09,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-04-07 01:09:09,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 323. [2022-04-07 01:09:09,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.5849056603773586) internal successors, (504), 318 states have internal predecessors, (504), 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) [2022-04-07 01:09:09,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 508 transitions. [2022-04-07 01:09:09,167 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 508 transitions. Word has length 92 [2022-04-07 01:09:09,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:09:09,168 INFO L478 AbstractCegarLoop]: Abstraction has 323 states and 508 transitions. [2022-04-07 01:09:09,168 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 508 transitions. [2022-04-07 01:09:09,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-04-07 01:09:09,169 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:09:09,169 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:09:09,169 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-07 01:09:09,169 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:09:09,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:09:09,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1693775945, now seen corresponding path program 1 times [2022-04-07 01:09:09,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:09,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [973435242] [2022-04-07 01:09:09,178 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:09:09,178 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:09:09,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1693775945, now seen corresponding path program 2 times [2022-04-07 01:09:09,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:09:09,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087891042] [2022-04-07 01:09:09,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:09:09,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:09:09,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:09,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:09:09,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-07 01:09:09,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:09:09,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087891042] [2022-04-07 01:09:09,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087891042] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:09,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:09,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:09,272 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:09:09,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [973435242] [2022-04-07 01:09:09,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [973435242] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:09,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:09,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:09,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052694419] [2022-04-07 01:09:09,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:09:09,273 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:09:09,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:09,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:09:09,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:09:09,273 INFO L87 Difference]: Start difference. First operand 323 states and 508 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) [2022-04-07 01:09:11,281 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 [] [2022-04-07 01:09:11,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:09:11,710 INFO L93 Difference]: Finished difference Result 738 states and 1162 transitions. [2022-04-07 01:09:11,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:09:11,711 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 120 [2022-04-07 01:09:11,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:09:11,712 INFO L225 Difference]: With dead ends: 738 [2022-04-07 01:09:11,712 INFO L226 Difference]: Without dead ends: 441 [2022-04-07 01:09:11,713 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:09:11,713 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 116 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:09:11,713 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 340 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 464 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:09:11,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-04-07 01:09:11,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 355. [2022-04-07 01:09:11,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.5914285714285714) internal successors, (557), 350 states have internal predecessors, (557), 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) [2022-04-07 01:09:11,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 561 transitions. [2022-04-07 01:09:11,742 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 561 transitions. Word has length 120 [2022-04-07 01:09:11,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:09:11,742 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 561 transitions. [2022-04-07 01:09:11,742 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) [2022-04-07 01:09:11,742 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 561 transitions. [2022-04-07 01:09:11,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-07 01:09:11,743 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:09:11,743 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 01:09:11,743 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-07 01:09:11,743 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:09:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:09:11,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1893583649, now seen corresponding path program 1 times [2022-04-07 01:09:11,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:11,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1241603089] [2022-04-07 01:09:11,757 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:09:11,757 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:09:11,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1893583649, now seen corresponding path program 2 times [2022-04-07 01:09:11,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:09:11,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498005528] [2022-04-07 01:09:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:09:11,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:09:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:11,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:09:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-07 01:09:11,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:09:11,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498005528] [2022-04-07 01:09:11,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498005528] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:11,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:11,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:11,846 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:09:11,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1241603089] [2022-04-07 01:09:11,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1241603089] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:11,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:11,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-07 01:09:11,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475520022] [2022-04-07 01:09:11,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:09:11,847 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-07 01:09:11,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:11,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-07 01:09:11,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-07 01:09:11,847 INFO L87 Difference]: Start difference. First operand 355 states and 561 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) [2022-04-07 01:09:13,864 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 [] [2022-04-07 01:09:14,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:09:14,201 INFO L93 Difference]: Finished difference Result 691 states and 1102 transitions. [2022-04-07 01:09:14,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-07 01:09:14,202 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 125 [2022-04-07 01:09:14,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:09:14,203 INFO L225 Difference]: With dead ends: 691 [2022-04-07 01:09:14,203 INFO L226 Difference]: Without dead ends: 362 [2022-04-07 01:09:14,204 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-07 01:09:14,204 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 30 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-07 01:09:14,204 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 495 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-04-07 01:09:14,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-04-07 01:09:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 355. [2022-04-07 01:09:14,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.5885714285714285) internal successors, (556), 350 states have internal predecessors, (556), 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) [2022-04-07 01:09:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 560 transitions. [2022-04-07 01:09:14,220 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 560 transitions. Word has length 125 [2022-04-07 01:09:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:09:14,220 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 560 transitions. [2022-04-07 01:09:14,220 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) [2022-04-07 01:09:14,220 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 560 transitions. [2022-04-07 01:09:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-07 01:09:14,221 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:09:14,221 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-07 01:09:14,221 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-07 01:09:14,221 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:09:14,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:09:14,222 INFO L85 PathProgramCache]: Analyzing trace with hash 977330790, now seen corresponding path program 1 times [2022-04-07 01:09:14,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:14,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1853999357] [2022-04-07 01:09:14,234 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:09:14,234 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:09:14,235 INFO L85 PathProgramCache]: Analyzing trace with hash 977330790, now seen corresponding path program 2 times [2022-04-07 01:09:14,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:09:14,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659144069] [2022-04-07 01:09:14,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:09:14,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:09:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 01:09:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 01:09:14,607 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-07 01:09:14,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 01:09:14,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659144069] [2022-04-07 01:09:14,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659144069] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:14,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:14,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-07 01:09:14,608 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-07 01:09:14,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1853999357] [2022-04-07 01:09:14,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1853999357] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 01:09:14,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 01:09:14,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-07 01:09:14,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039546243] [2022-04-07 01:09:14,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 01:09:14,608 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-07 01:09:14,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:14,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-07 01:09:14,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-07 01:09:14,609 INFO L87 Difference]: Start difference. First operand 355 states and 560 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:16,617 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 [] [2022-04-07 01:09:17,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 01:09:17,038 INFO L93 Difference]: Finished difference Result 703 states and 1112 transitions. [2022-04-07 01:09:17,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-07 01:09:17,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-07 01:09:17,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 01:09:17,040 INFO L225 Difference]: With dead ends: 703 [2022-04-07 01:09:17,040 INFO L226 Difference]: Without dead ends: 355 [2022-04-07 01:09:17,041 INFO L912 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 [2022-04-07 01:09:17,041 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 7 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-07 01:09:17,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 791 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 429 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-07 01:09:17,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-04-07 01:09:17,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2022-04-07 01:09:17,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 350 states have (on average 1.5857142857142856) internal successors, (555), 350 states have internal predecessors, (555), 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) [2022-04-07 01:09:17,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 559 transitions. [2022-04-07 01:09:17,053 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 559 transitions. Word has length 132 [2022-04-07 01:09:17,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 01:09:17,053 INFO L478 AbstractCegarLoop]: Abstraction has 355 states and 559 transitions. [2022-04-07 01:09:17,053 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 01:09:17,053 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 559 transitions. [2022-04-07 01:09:17,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-07 01:09:17,054 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 01:09:17,054 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-04-07 01:09:17,054 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-07 01:09:17,054 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 01:09:17,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 01:09:17,055 INFO L85 PathProgramCache]: Analyzing trace with hash 547672484, now seen corresponding path program 1 times [2022-04-07 01:09:17,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-07 01:09:17,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1271622008] [2022-04-07 01:09:17,067 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-04-07 01:09:17,067 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-04-07 01:09:17,067 INFO L85 PathProgramCache]: Analyzing trace with hash 547672484, now seen corresponding path program 2 times [2022-04-07 01:09:17,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 01:09:17,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324029292] [2022-04-07 01:09:17,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 01:09:17,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 01:09:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 01:09:17,427 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-07 01:09:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 01:09:17,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-07 01:09:17,600 INFO L130 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found a feasible trace [2022-04-07 01:09:17,600 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-07 01:09:17,605 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 01:09:17,606 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-07 01:09:17,608 INFO L719 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2] [2022-04-07 01:09:17,609 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 01:09:17,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 01:09:17 BoogieIcfgContainer [2022-04-07 01:09:17,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 01:09:17,646 INFO L158 Benchmark]: Toolchain (without parser) took 83612.87ms. Allocated memory was 181.4MB in the beginning and 273.7MB in the end (delta: 92.3MB). Free memory was 127.4MB in the beginning and 154.2MB in the end (delta: -26.7MB). Peak memory consumption was 65.3MB. Max. memory is 8.0GB. [2022-04-07 01:09:17,646 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 181.4MB. Free memory was 146.2MB in the beginning and 146.1MB in the end (delta: 74.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 01:09:17,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.68ms. Allocated memory was 181.4MB in the beginning and 227.5MB in the end (delta: 46.1MB). Free memory was 127.2MB in the beginning and 182.3MB in the end (delta: -55.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-04-07 01:09:17,650 INFO L158 Benchmark]: Boogie Preprocessor took 96.16ms. Allocated memory is still 227.5MB. Free memory was 182.3MB in the beginning and 174.6MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-04-07 01:09:17,650 INFO L158 Benchmark]: RCFGBuilder took 2877.24ms. Allocated memory is still 227.5MB. Free memory was 174.6MB in the beginning and 174.0MB in the end (delta: 612.8kB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. [2022-04-07 01:09:17,650 INFO L158 Benchmark]: TraceAbstraction took 80169.18ms. Allocated memory was 227.5MB in the beginning and 273.7MB in the end (delta: 46.1MB). Free memory was 173.4MB in the beginning and 154.2MB in the end (delta: 19.2MB). Peak memory consumption was 64.9MB. Max. memory is 8.0GB. [2022-04-07 01:09:17,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 181.4MB. Free memory was 146.2MB in the beginning and 146.1MB in the end (delta: 74.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 458.68ms. Allocated memory was 181.4MB in the beginning and 227.5MB in the end (delta: 46.1MB). Free memory was 127.2MB in the beginning and 182.3MB in the end (delta: -55.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 96.16ms. Allocated memory is still 227.5MB. Free memory was 182.3MB in the beginning and 174.6MB in the end (delta: 7.8MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 2877.24ms. Allocated memory is still 227.5MB. Free memory was 174.6MB in the beginning and 174.0MB in the end (delta: 612.8kB). Peak memory consumption was 64.0MB. Max. memory is 8.0GB. * TraceAbstraction took 80169.18ms. Allocated memory was 227.5MB in the beginning and 273.7MB in the end (delta: 46.1MB). Free memory was 173.4MB in the beginning and 154.2MB in the end (delta: 19.2MB). Peak memory consumption was 64.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1734]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1152. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf ; [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 = __VERIFIER_nondet_int() ; [L1126] int tmp___4 = __VERIFIER_nondet_int() ; [L1127] int tmp___5 = __VERIFIER_nondet_int() ; [L1128] int tmp___6 = __VERIFIER_nondet_int() ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 = __VERIFIER_nondet_int() ; [L1132] int tmp___10 = __VERIFIER_nondet_int() ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) [L1161] EXPR s->cert [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 [L1693] EXPR s->s3 [L1693] EXPR (s->s3)->tmp.reuse_message [L1693] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1722] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 [L1378] COND FALSE !(ret <= 0) [L1383] s->hit [L1383] COND TRUE s->hit [L1384] s->state = 8656 [L1388] s->init_num = 0 [L1693] EXPR s->s3 [L1693] EXPR (s->s3)->tmp.reuse_message [L1693] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1722] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND TRUE s->state == 8656 [L1586] EXPR s->session [L1586] EXPR s->s3 [L1586] EXPR (s->s3)->tmp.new_cipher [L1586] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1587] COND FALSE !(! tmp___9) [L1593] ret = __VERIFIER_nondet_int() [L1594] COND TRUE blastFlag == 2 [L1595] blastFlag = 3 [L1599] COND FALSE !(ret <= 0) [L1604] s->state = 8672 [L1605] s->init_num = 0 [L1606] COND FALSE !(! tmp___10) [L1693] EXPR s->s3 [L1693] EXPR (s->s3)->tmp.reuse_message [L1693] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1722] skip = 0 [L1167] COND TRUE 1 [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state [L1260] COND FALSE !(s->state == 8656) [L1263] EXPR s->state [L1263] COND FALSE !(s->state == 8657) [L1266] EXPR s->state [L1266] COND TRUE s->state == 8672 [L1615] ret = __VERIFIER_nondet_int() [L1616] COND TRUE blastFlag == 3 [L1734] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 184 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.1s, OverallIterations: 26, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 75.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 31 mSolverCounterUnknown, 1275 SdHoareTripleChecker+Valid, 75.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1275 mSDsluCounter, 11453 SdHoareTripleChecker+Invalid, 72.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7201 mSDsCounter, 532 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9963 IncrementalHoareTripleChecker+Invalid, 10526 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 532 mSolverCounterUnsat, 4252 mSDtfsCounter, 9963 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=355occurred in iteration=23, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 25 MinimizatonAttempts, 874 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-04-07 01:09:17,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...