/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.12.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 13:47:02,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 13:47:02,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 13:47:02,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 13:47:02,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 13:47:02,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 13:47:02,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 13:47:02,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 13:47:02,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 13:47:02,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 13:47:02,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 13:47:02,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 13:47:02,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 13:47:02,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 13:47:02,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 13:47:02,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 13:47:02,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 13:47:02,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 13:47:02,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 13:47:02,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 13:47:02,824 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 13:47:02,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 13:47:02,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 13:47:02,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 13:47:02,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 13:47:02,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-19 13:47:02,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 13:47:02,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 13:47:02,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 13:47:02,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-19 13:47:02,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 13:47:02,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 13:47:02,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 13:47:02,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 13:47:02,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 13:47:02,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 13:47:02,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 13:47:02,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 13:47:02,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 13:47:02,858 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 13:47:02,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 13:47:02,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 13:47:02,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 13:47:02,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 13:47:02,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 13:47:02,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:47:02,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 13:47:02,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 13:47:02,858 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 13:47:02,859 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 13:47:02,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 13:47:02,859 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-19 13:47:02,859 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 13:47:03,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 13:47:03,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 13:47:03,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 13:47:03,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 13:47:03,090 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 13:47:03,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-03-19 13:47:03,136 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6542227b2/babc05d447dd4503a4ef3fcd777c12e1/FLAG3b1c43afd [2022-03-19 13:47:03,537 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 13:47:03,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.12.i.cil-1.c [2022-03-19 13:47:03,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6542227b2/babc05d447dd4503a4ef3fcd777c12e1/FLAG3b1c43afd [2022-03-19 13:47:03,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6542227b2/babc05d447dd4503a4ef3fcd777c12e1 [2022-03-19 13:47:03,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 13:47:03,897 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 13:47:03,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 13:47:03,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 13:47:03,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 13:47:03,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:47:03" (1/1) ... [2022-03-19 13:47:03,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747c47f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:03, skipping insertion in model container [2022-03-19 13:47:03,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:47:03" (1/1) ... [2022-03-19 13:47:03,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 13:47:03,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 13:47:04,319 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.12.i.cil-1.c[75166,75179] [2022-03-19 13:47:04,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:47:04,344 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 13:47:04,434 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.12.i.cil-1.c[75166,75179] [2022-03-19 13:47:04,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:47:04,449 INFO L208 MainTranslator]: Completed translation [2022-03-19 13:47:04,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04 WrapperNode [2022-03-19 13:47:04,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 13:47:04,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 13:47:04,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 13:47:04,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 13:47:04,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04" (1/1) ... [2022-03-19 13:47:04,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04" (1/1) ... [2022-03-19 13:47:04,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04" (1/1) ... [2022-03-19 13:47:04,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04" (1/1) ... [2022-03-19 13:47:04,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04" (1/1) ... [2022-03-19 13:47:04,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04" (1/1) ... [2022-03-19 13:47:04,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04" (1/1) ... [2022-03-19 13:47:04,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 13:47:04,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 13:47:04,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 13:47:04,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 13:47:04,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04" (1/1) ... [2022-03-19 13:47:04,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:47:04,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:47:04,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-19 13:47:04,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 13:47:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 13:47:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 13:47:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 13:47:04,701 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 13:47:04,702 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 13:47:05,778 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 13:47:06,172 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-03-19 13:47:06,172 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-03-19 13:47:06,181 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 13:47:06,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 13:47:06,187 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 13:47:06,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:47:06 BoogieIcfgContainer [2022-03-19 13:47:06,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 13:47:06,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 13:47:06,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 13:47:06,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 13:47:06,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 01:47:03" (1/3) ... [2022-03-19 13:47:06,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cff36c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:47:06, skipping insertion in model container [2022-03-19 13:47:06,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:47:04" (2/3) ... [2022-03-19 13:47:06,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cff36c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:47:06, skipping insertion in model container [2022-03-19 13:47:06,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:47:06" (3/3) ... [2022-03-19 13:47:06,194 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.12.i.cil-1.c [2022-03-19 13:47:06,198 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 13:47:06,198 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 13:47:06,225 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 13:47:06,229 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-03-19 13:47:06,229 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 13:47:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 152 states have (on average 1.7105263157894737) internal successors, (260), 153 states have internal predecessors, (260), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-03-19 13:47:06,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-19 13:47:06,247 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:06,248 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:06,248 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:06,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:06,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1669369650, now seen corresponding path program 1 times [2022-03-19 13:47:06,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:06,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1352522641] [2022-03-19 13:47:06,263 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:47:06,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1669369650, now seen corresponding path program 2 times [2022-03-19 13:47:06,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:06,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421516543] [2022-03-19 13:47:06,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:06,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:06,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:47:06,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:06,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421516543] [2022-03-19 13:47:06,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421516543] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:06,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:06,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:06,662 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:06,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1352522641] [2022-03-19 13:47:06,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1352522641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:06,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:06,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:06,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118177428] [2022-03-19 13:47:06,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:06,666 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:06,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:06,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:06,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:06,683 INFO L87 Difference]: Start difference. First operand has 160 states, 152 states have (on average 1.7105263157894737) internal successors, (260), 153 states have internal predecessors, (260), 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 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:09,933 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:11,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:12,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:12,867 INFO L93 Difference]: Finished difference Result 437 states and 740 transitions. [2022-03-19 13:47:12,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:12,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 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 48 [2022-03-19 13:47:12,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:12,894 INFO L225 Difference]: With dead ends: 437 [2022-03-19 13:47:12,894 INFO L226 Difference]: Without dead ends: 266 [2022-03-19 13:47:12,897 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:47:12,899 INFO L912 BasicCegarLoop]: 161 mSDtfsCounter, 160 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:12,900 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 473 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 537 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-03-19 13:47:12,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-03-19 13:47:12,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 184. [2022-03-19 13:47:12,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 179 states have (on average 1.6089385474860336) internal successors, (288), 179 states have internal predecessors, (288), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 292 transitions. [2022-03-19 13:47:12,982 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 292 transitions. Word has length 48 [2022-03-19 13:47:12,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:12,982 INFO L478 AbstractCegarLoop]: Abstraction has 184 states and 292 transitions. [2022-03-19 13:47:12,983 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:12,983 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 292 transitions. [2022-03-19 13:47:12,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-19 13:47:12,984 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:12,984 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:12,985 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 13:47:12,985 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:12,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:12,986 INFO L85 PathProgramCache]: Analyzing trace with hash 203097938, now seen corresponding path program 1 times [2022-03-19 13:47:12,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:12,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [732231368] [2022-03-19 13:47:12,986 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:47:12,986 INFO L85 PathProgramCache]: Analyzing trace with hash 203097938, now seen corresponding path program 2 times [2022-03-19 13:47:12,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:12,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329488029] [2022-03-19 13:47:12,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:12,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:13,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:13,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:47:13,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:13,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329488029] [2022-03-19 13:47:13,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329488029] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:13,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:13,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:13,120 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:13,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [732231368] [2022-03-19 13:47:13,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [732231368] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:13,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:13,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:13,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600144900] [2022-03-19 13:47:13,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:13,122 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:13,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:13,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:13,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:13,122 INFO L87 Difference]: Start difference. First operand 184 states and 292 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:14,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:16,557 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:17,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:18,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:18,995 INFO L93 Difference]: Finished difference Result 474 states and 755 transitions. [2022-03-19 13:47:18,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:18,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 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 49 [2022-03-19 13:47:18,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:18,998 INFO L225 Difference]: With dead ends: 474 [2022-03-19 13:47:18,998 INFO L226 Difference]: Without dead ends: 305 [2022-03-19 13:47:18,999 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:47:18,999 INFO L912 BasicCegarLoop]: 129 mSDtfsCounter, 127 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:19,000 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 370 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 488 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-19 13:47:19,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-03-19 13:47:19,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 224. [2022-03-19 13:47:19,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 219 states have (on average 1.6529680365296804) internal successors, (362), 219 states have internal predecessors, (362), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:19,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 366 transitions. [2022-03-19 13:47:19,033 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 366 transitions. Word has length 49 [2022-03-19 13:47:19,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:19,033 INFO L478 AbstractCegarLoop]: Abstraction has 224 states and 366 transitions. [2022-03-19 13:47:19,034 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:19,034 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 366 transitions. [2022-03-19 13:47:19,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-19 13:47:19,055 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:19,055 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:19,055 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 13:47:19,056 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:19,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:19,056 INFO L85 PathProgramCache]: Analyzing trace with hash -824723289, now seen corresponding path program 1 times [2022-03-19 13:47:19,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:19,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1008274595] [2022-03-19 13:47:19,066 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:47:19,067 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:47:19,067 INFO L85 PathProgramCache]: Analyzing trace with hash -824723289, now seen corresponding path program 2 times [2022-03-19 13:47:19,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:19,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507208484] [2022-03-19 13:47:19,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:19,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:19,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:19,270 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-03-19 13:47:19,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:19,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507208484] [2022-03-19 13:47:19,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507208484] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:19,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:19,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:19,273 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:19,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1008274595] [2022-03-19 13:47:19,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1008274595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:19,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:19,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:19,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36742278] [2022-03-19 13:47:19,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:19,277 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:19,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:19,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:19,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:19,278 INFO L87 Difference]: Start difference. First operand 224 states and 366 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) [2022-03-19 13:47:20,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:22,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:23,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:24,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:25,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:25,188 INFO L93 Difference]: Finished difference Result 461 states and 754 transitions. [2022-03-19 13:47:25,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:25,188 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 77 [2022-03-19 13:47:25,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:25,190 INFO L225 Difference]: With dead ends: 461 [2022-03-19 13:47:25,190 INFO L226 Difference]: Without dead ends: 252 [2022-03-19 13:47:25,191 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:47:25,191 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 22 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:25,191 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 493 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-19 13:47:25,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-03-19 13:47:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 235. [2022-03-19 13:47:25,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.6565217391304348) internal successors, (381), 230 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 385 transitions. [2022-03-19 13:47:25,204 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 385 transitions. Word has length 77 [2022-03-19 13:47:25,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:25,204 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 385 transitions. [2022-03-19 13:47:25,204 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) [2022-03-19 13:47:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 385 transitions. [2022-03-19 13:47:25,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-19 13:47:25,206 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:25,207 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:25,207 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 13:47:25,207 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:25,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:25,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1213391437, now seen corresponding path program 1 times [2022-03-19 13:47:25,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:25,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [383292721] [2022-03-19 13:47:25,215 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:47:25,215 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:47:25,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1213391437, now seen corresponding path program 2 times [2022-03-19 13:47:25,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:25,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910426096] [2022-03-19 13:47:25,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:25,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:25,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:47:25,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:25,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910426096] [2022-03-19 13:47:25,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910426096] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:25,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:25,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:25,349 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:25,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [383292721] [2022-03-19 13:47:25,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [383292721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:25,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:25,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:25,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020131660] [2022-03-19 13:47:25,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:25,355 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:25,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:25,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:25,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:25,356 INFO L87 Difference]: Start difference. First operand 235 states and 385 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:26,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:28,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:30,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:32,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:33,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:33,066 INFO L93 Difference]: Finished difference Result 461 states and 753 transitions. [2022-03-19 13:47:33,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:33,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 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 90 [2022-03-19 13:47:33,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:33,067 INFO L225 Difference]: With dead ends: 461 [2022-03-19 13:47:33,067 INFO L226 Difference]: Without dead ends: 252 [2022-03-19 13:47:33,068 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:47:33,069 INFO L912 BasicCegarLoop]: 191 mSDtfsCounter, 24 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 10 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:33,069 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 495 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 365 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-19 13:47:33,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-03-19 13:47:33,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 235. [2022-03-19 13:47:33,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.6521739130434783) internal successors, (380), 230 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:33,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 384 transitions. [2022-03-19 13:47:33,082 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 384 transitions. Word has length 90 [2022-03-19 13:47:33,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:33,083 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 384 transitions. [2022-03-19 13:47:33,083 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 384 transitions. [2022-03-19 13:47:33,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-19 13:47:33,086 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:33,087 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:33,087 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 13:47:33,087 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:33,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:33,088 INFO L85 PathProgramCache]: Analyzing trace with hash 785398365, now seen corresponding path program 1 times [2022-03-19 13:47:33,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:33,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [126094064] [2022-03-19 13:47:33,181 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:47:33,181 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:47:33,181 INFO L85 PathProgramCache]: Analyzing trace with hash 785398365, now seen corresponding path program 2 times [2022-03-19 13:47:33,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:33,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017416426] [2022-03-19 13:47:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:33,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:33,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:47:33,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:33,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017416426] [2022-03-19 13:47:33,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017416426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:33,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:33,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:33,321 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:33,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [126094064] [2022-03-19 13:47:33,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [126094064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:33,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:33,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:33,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901630030] [2022-03-19 13:47:33,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:33,321 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:33,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:33,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:33,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:33,322 INFO L87 Difference]: Start difference. First operand 235 states and 384 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) [2022-03-19 13:47:34,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:36,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:38,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:40,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:41,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:41,425 INFO L93 Difference]: Finished difference Result 524 states and 845 transitions. [2022-03-19 13:47:41,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:41,425 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 91 [2022-03-19 13:47:41,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:41,426 INFO L225 Difference]: With dead ends: 524 [2022-03-19 13:47:41,426 INFO L226 Difference]: Without dead ends: 315 [2022-03-19 13:47:41,427 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:47:41,427 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 155 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:41,428 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 485 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-03-19 13:47:41,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-19 13:47:41,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 235. [2022-03-19 13:47:41,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.6391304347826088) internal successors, (377), 230 states have internal predecessors, (377), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:41,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 381 transitions. [2022-03-19 13:47:41,445 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 381 transitions. Word has length 91 [2022-03-19 13:47:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:41,445 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 381 transitions. [2022-03-19 13:47:41,445 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) [2022-03-19 13:47:41,445 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 381 transitions. [2022-03-19 13:47:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-19 13:47:41,447 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:41,447 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:41,447 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 13:47:41,447 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash 120004937, now seen corresponding path program 1 times [2022-03-19 13:47:41,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:41,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1798546463] [2022-03-19 13:47:41,457 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:47:41,457 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:47:41,457 INFO L85 PathProgramCache]: Analyzing trace with hash 120004937, now seen corresponding path program 2 times [2022-03-19 13:47:41,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:41,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394374996] [2022-03-19 13:47:41,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:41,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:41,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:47:41,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:41,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394374996] [2022-03-19 13:47:41,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394374996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:41,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:41,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:41,561 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:41,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1798546463] [2022-03-19 13:47:41,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1798546463] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:41,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:41,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:41,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120995032] [2022-03-19 13:47:41,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:41,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:41,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:41,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:41,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:41,565 INFO L87 Difference]: Start difference. First operand 235 states and 381 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) [2022-03-19 13:47:43,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:45,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:46,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:46,110 INFO L93 Difference]: Finished difference Result 460 states and 746 transitions. [2022-03-19 13:47:46,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:46,110 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 91 [2022-03-19 13:47:46,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:46,111 INFO L225 Difference]: With dead ends: 460 [2022-03-19 13:47:46,111 INFO L226 Difference]: Without dead ends: 251 [2022-03-19 13:47:46,112 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:47:46,112 INFO L912 BasicCegarLoop]: 192 mSDtfsCounter, 26 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:46,113 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 497 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 365 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-03-19 13:47:46,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-03-19 13:47:46,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 235. [2022-03-19 13:47:46,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.6347826086956523) internal successors, (376), 230 states have internal predecessors, (376), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:46,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 380 transitions. [2022-03-19 13:47:46,120 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 380 transitions. Word has length 91 [2022-03-19 13:47:46,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:46,121 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 380 transitions. [2022-03-19 13:47:46,121 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) [2022-03-19 13:47:46,121 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 380 transitions. [2022-03-19 13:47:46,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-19 13:47:46,121 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:46,121 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:46,122 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 13:47:46,122 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:46,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash 814450546, now seen corresponding path program 1 times [2022-03-19 13:47:46,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:46,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1634496095] [2022-03-19 13:47:46,129 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:47:46,129 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:47:46,129 INFO L85 PathProgramCache]: Analyzing trace with hash 814450546, now seen corresponding path program 2 times [2022-03-19 13:47:46,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:46,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893967475] [2022-03-19 13:47:46,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:46,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:46,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:46,205 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:47:46,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:46,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893967475] [2022-03-19 13:47:46,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893967475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:46,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:46,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:46,206 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:46,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1634496095] [2022-03-19 13:47:46,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1634496095] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:46,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:46,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:46,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243137949] [2022-03-19 13:47:46,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:46,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:46,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:46,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:46,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:46,207 INFO L87 Difference]: Start difference. First operand 235 states and 380 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) [2022-03-19 13:47:47,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:49,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:52,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:52,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:52,885 INFO L93 Difference]: Finished difference Result 458 states and 743 transitions. [2022-03-19 13:47:52,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:52,885 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 91 [2022-03-19 13:47:52,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:52,886 INFO L225 Difference]: With dead ends: 458 [2022-03-19 13:47:52,886 INFO L226 Difference]: Without dead ends: 249 [2022-03-19 13:47:52,887 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:47:52,887 INFO L912 BasicCegarLoop]: 194 mSDtfsCounter, 20 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:52,887 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 501 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 360 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-03-19 13:47:52,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-03-19 13:47:52,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 235. [2022-03-19 13:47:52,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.6304347826086956) internal successors, (375), 230 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 379 transitions. [2022-03-19 13:47:52,894 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 379 transitions. Word has length 91 [2022-03-19 13:47:52,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:52,894 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 379 transitions. [2022-03-19 13:47:52,895 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) [2022-03-19 13:47:52,895 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 379 transitions. [2022-03-19 13:47:52,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-19 13:47:52,895 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:52,895 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:52,895 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 13:47:52,896 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:52,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:52,896 INFO L85 PathProgramCache]: Analyzing trace with hash -2040904559, now seen corresponding path program 1 times [2022-03-19 13:47:52,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:52,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2023795732] [2022-03-19 13:47:52,903 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:47:52,903 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:47:52,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2040904559, now seen corresponding path program 2 times [2022-03-19 13:47:52,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:52,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178687234] [2022-03-19 13:47:52,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:52,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:52,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:47:52,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:52,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178687234] [2022-03-19 13:47:52,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178687234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:52,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:52,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:52,989 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:52,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2023795732] [2022-03-19 13:47:52,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2023795732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:52,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:52,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:52,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970063221] [2022-03-19 13:47:52,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:52,989 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:52,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:52,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:52,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:52,990 INFO L87 Difference]: Start difference. First operand 235 states and 379 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) [2022-03-19 13:47:55,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:57,018 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:47:58,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:58,213 INFO L93 Difference]: Finished difference Result 457 states and 741 transitions. [2022-03-19 13:47:58,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:58,213 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 91 [2022-03-19 13:47:58,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:58,214 INFO L225 Difference]: With dead ends: 457 [2022-03-19 13:47:58,214 INFO L226 Difference]: Without dead ends: 248 [2022-03-19 13:47:58,214 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:47:58,215 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 18 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:58,215 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 503 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-19 13:47:58,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-19 13:47:58,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 235. [2022-03-19 13:47:58,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.626086956521739) internal successors, (374), 230 states have internal predecessors, (374), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:58,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 378 transitions. [2022-03-19 13:47:58,221 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 378 transitions. Word has length 91 [2022-03-19 13:47:58,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:58,222 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 378 transitions. [2022-03-19 13:47:58,222 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) [2022-03-19 13:47:58,222 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 378 transitions. [2022-03-19 13:47:58,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-03-19 13:47:58,222 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:58,223 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:58,223 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 13:47:58,223 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:58,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:58,223 INFO L85 PathProgramCache]: Analyzing trace with hash 722842116, now seen corresponding path program 1 times [2022-03-19 13:47:58,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:58,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [701127478] [2022-03-19 13:47:58,229 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:47:58,229 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:47:58,229 INFO L85 PathProgramCache]: Analyzing trace with hash 722842116, now seen corresponding path program 2 times [2022-03-19 13:47:58,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:58,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862820842] [2022-03-19 13:47:58,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:58,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:58,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:58,306 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:47:58,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:58,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862820842] [2022-03-19 13:47:58,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862820842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:58,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:58,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:58,306 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:58,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [701127478] [2022-03-19 13:47:58,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [701127478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:58,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:58,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:58,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98200026] [2022-03-19 13:47:58,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:58,307 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:58,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:58,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:58,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:58,307 INFO L87 Difference]: Start difference. First operand 235 states and 378 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:47:59,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:01,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:03,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:03,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:03,999 INFO L93 Difference]: Finished difference Result 457 states and 740 transitions. [2022-03-19 13:48:03,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:03,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2022-03-19 13:48:03,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:04,000 INFO L225 Difference]: With dead ends: 457 [2022-03-19 13:48:04,000 INFO L226 Difference]: Without dead ends: 248 [2022-03-19 13:48:04,001 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:04,001 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 22 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:04,001 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 503 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 359 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 13:48:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-03-19 13:48:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 235. [2022-03-19 13:48:04,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.6217391304347826) internal successors, (373), 230 states have internal predecessors, (373), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:04,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 377 transitions. [2022-03-19 13:48:04,008 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 377 transitions. Word has length 92 [2022-03-19 13:48:04,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:04,008 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 377 transitions. [2022-03-19 13:48:04,008 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 377 transitions. [2022-03-19 13:48:04,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-19 13:48:04,009 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:04,009 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:04,009 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 13:48:04,010 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:04,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:04,010 INFO L85 PathProgramCache]: Analyzing trace with hash 154015300, now seen corresponding path program 1 times [2022-03-19 13:48:04,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:04,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1555191534] [2022-03-19 13:48:04,018 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:04,018 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:04,018 INFO L85 PathProgramCache]: Analyzing trace with hash 154015300, now seen corresponding path program 2 times [2022-03-19 13:48:04,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:04,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407700616] [2022-03-19 13:48:04,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:04,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:04,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:48:04,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:04,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407700616] [2022-03-19 13:48:04,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407700616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:04,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:04,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:04,130 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:04,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1555191534] [2022-03-19 13:48:04,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1555191534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:04,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:04,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:04,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393172655] [2022-03-19 13:48:04,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:04,131 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:04,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:04,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:04,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:04,131 INFO L87 Difference]: Start difference. First operand 235 states and 377 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:06,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:08,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:10,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:11,002 INFO L93 Difference]: Finished difference Result 524 states and 836 transitions. [2022-03-19 13:48:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:11,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-03-19 13:48:11,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:11,003 INFO L225 Difference]: With dead ends: 524 [2022-03-19 13:48:11,003 INFO L226 Difference]: Without dead ends: 315 [2022-03-19 13:48:11,004 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:11,004 INFO L912 BasicCegarLoop]: 130 mSDtfsCounter, 151 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 61 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:11,005 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 372 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 484 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-03-19 13:48:11,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-03-19 13:48:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 235. [2022-03-19 13:48:11,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.608695652173913) internal successors, (370), 230 states have internal predecessors, (370), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:11,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 374 transitions. [2022-03-19 13:48:11,011 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 374 transitions. Word has length 93 [2022-03-19 13:48:11,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:11,012 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 374 transitions. [2022-03-19 13:48:11,012 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:11,012 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 374 transitions. [2022-03-19 13:48:11,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-19 13:48:11,012 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:11,012 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:11,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 13:48:11,013 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:11,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:11,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1918310303, now seen corresponding path program 1 times [2022-03-19 13:48:11,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:11,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1946466015] [2022-03-19 13:48:11,019 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:11,019 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:11,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1918310303, now seen corresponding path program 2 times [2022-03-19 13:48:11,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:11,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598621630] [2022-03-19 13:48:11,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:11,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:11,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:11,101 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:48:11,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:11,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598621630] [2022-03-19 13:48:11,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598621630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:11,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:11,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:11,120 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:11,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1946466015] [2022-03-19 13:48:11,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1946466015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:11,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:11,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:11,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561054111] [2022-03-19 13:48:11,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:11,121 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:11,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:11,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:11,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:11,122 INFO L87 Difference]: Start difference. First operand 235 states and 374 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:14,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:15,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:15,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:15,976 INFO L93 Difference]: Finished difference Result 447 states and 721 transitions. [2022-03-19 13:48:15,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:15,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-19 13:48:15,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:15,977 INFO L225 Difference]: With dead ends: 447 [2022-03-19 13:48:15,977 INFO L226 Difference]: Without dead ends: 238 [2022-03-19 13:48:15,978 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:15,978 INFO L912 BasicCegarLoop]: 202 mSDtfsCounter, 11 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:15,978 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 517 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-03-19 13:48:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-03-19 13:48:15,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 235. [2022-03-19 13:48:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.6043478260869566) internal successors, (369), 230 states have internal predecessors, (369), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:15,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 373 transitions. [2022-03-19 13:48:15,985 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 373 transitions. Word has length 94 [2022-03-19 13:48:15,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:15,985 INFO L478 AbstractCegarLoop]: Abstraction has 235 states and 373 transitions. [2022-03-19 13:48:15,985 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:15,985 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 373 transitions. [2022-03-19 13:48:15,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-03-19 13:48:15,986 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:15,986 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:15,986 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-19 13:48:15,986 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:15,986 INFO L85 PathProgramCache]: Analyzing trace with hash -917845546, now seen corresponding path program 1 times [2022-03-19 13:48:15,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:15,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [726370464] [2022-03-19 13:48:15,993 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:15,993 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:15,993 INFO L85 PathProgramCache]: Analyzing trace with hash -917845546, now seen corresponding path program 2 times [2022-03-19 13:48:15,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:15,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978043234] [2022-03-19 13:48:15,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:15,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:16,070 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:48:16,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:16,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978043234] [2022-03-19 13:48:16,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978043234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:16,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:16,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:16,071 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:16,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [726370464] [2022-03-19 13:48:16,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [726370464] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:16,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:16,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:16,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553006013] [2022-03-19 13:48:16,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:16,071 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:16,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:16,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:16,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:16,072 INFO L87 Difference]: Start difference. First operand 235 states and 373 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:17,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:19,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:21,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:23,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:23,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:23,761 INFO L93 Difference]: Finished difference Result 600 states and 968 transitions. [2022-03-19 13:48:23,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:23,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 94 [2022-03-19 13:48:23,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:23,763 INFO L225 Difference]: With dead ends: 600 [2022-03-19 13:48:23,763 INFO L226 Difference]: Without dead ends: 391 [2022-03-19 13:48:23,764 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:23,764 INFO L912 BasicCegarLoop]: 128 mSDtfsCounter, 132 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 50 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:23,765 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 368 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 471 Invalid, 3 Unknown, 0 Unchecked, 7.7s Time] [2022-03-19 13:48:23,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2022-03-19 13:48:23,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 299. [2022-03-19 13:48:23,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 294 states have (on average 1.6360544217687074) internal successors, (481), 294 states have internal predecessors, (481), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:23,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 485 transitions. [2022-03-19 13:48:23,779 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 485 transitions. Word has length 94 [2022-03-19 13:48:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:23,780 INFO L478 AbstractCegarLoop]: Abstraction has 299 states and 485 transitions. [2022-03-19 13:48:23,780 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 485 transitions. [2022-03-19 13:48:23,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-19 13:48:23,781 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:23,781 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:23,781 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 13:48:23,781 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:23,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:23,782 INFO L85 PathProgramCache]: Analyzing trace with hash -562378976, now seen corresponding path program 1 times [2022-03-19 13:48:23,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:23,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [257346926] [2022-03-19 13:48:23,793 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:23,794 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:23,794 INFO L85 PathProgramCache]: Analyzing trace with hash -562378976, now seen corresponding path program 2 times [2022-03-19 13:48:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:23,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683636946] [2022-03-19 13:48:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:23,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:23,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:23,928 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-19 13:48:23,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:23,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683636946] [2022-03-19 13:48:23,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683636946] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:23,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:23,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:23,929 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:23,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [257346926] [2022-03-19 13:48:23,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [257346926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:23,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:23,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:23,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799581857] [2022-03-19 13:48:23,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:23,929 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:23,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:23,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:23,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:23,930 INFO L87 Difference]: Start difference. First operand 299 states and 485 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:25,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:26,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:26,320 INFO L93 Difference]: Finished difference Result 614 states and 1003 transitions. [2022-03-19 13:48:26,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:26,321 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 100 [2022-03-19 13:48:26,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:26,322 INFO L225 Difference]: With dead ends: 614 [2022-03-19 13:48:26,322 INFO L226 Difference]: Without dead ends: 341 [2022-03-19 13:48:26,323 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:26,323 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 32 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:26,323 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 517 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:48:26,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2022-03-19 13:48:26,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 321. [2022-03-19 13:48:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 316 states have (on average 1.6360759493670887) internal successors, (517), 316 states have internal predecessors, (517), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 521 transitions. [2022-03-19 13:48:26,334 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 521 transitions. Word has length 100 [2022-03-19 13:48:26,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:26,334 INFO L478 AbstractCegarLoop]: Abstraction has 321 states and 521 transitions. [2022-03-19 13:48:26,334 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:26,334 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 521 transitions. [2022-03-19 13:48:26,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-03-19 13:48:26,335 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:26,335 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:26,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-19 13:48:26,335 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:26,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:26,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1390114174, now seen corresponding path program 1 times [2022-03-19 13:48:26,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:26,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1845494588] [2022-03-19 13:48:26,345 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:26,345 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:26,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1390114174, now seen corresponding path program 2 times [2022-03-19 13:48:26,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:26,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821126799] [2022-03-19 13:48:26,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:26,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:26,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:26,434 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:48:26,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:26,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821126799] [2022-03-19 13:48:26,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821126799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:26,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:26,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:26,435 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:26,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1845494588] [2022-03-19 13:48:26,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1845494588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:26,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:26,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:26,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383603139] [2022-03-19 13:48:26,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:26,435 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:26,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:26,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:26,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:26,437 INFO L87 Difference]: Start difference. First operand 321 states and 521 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:28,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:29,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:29,025 INFO L93 Difference]: Finished difference Result 736 states and 1196 transitions. [2022-03-19 13:48:29,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:29,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 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 107 [2022-03-19 13:48:29,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:29,027 INFO L225 Difference]: With dead ends: 736 [2022-03-19 13:48:29,027 INFO L226 Difference]: Without dead ends: 441 [2022-03-19 13:48:29,028 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:29,028 INFO L912 BasicCegarLoop]: 241 mSDtfsCounter, 149 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:29,028 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 594 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 596 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-19 13:48:29,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-03-19 13:48:29,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 337. [2022-03-19 13:48:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 332 states have (on average 1.6174698795180722) internal successors, (537), 332 states have internal predecessors, (537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:29,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 541 transitions. [2022-03-19 13:48:29,043 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 541 transitions. Word has length 107 [2022-03-19 13:48:29,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:29,043 INFO L478 AbstractCegarLoop]: Abstraction has 337 states and 541 transitions. [2022-03-19 13:48:29,043 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:29,043 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 541 transitions. [2022-03-19 13:48:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-19 13:48:29,044 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:29,044 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:29,044 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 13:48:29,044 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:29,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:29,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1997888097, now seen corresponding path program 1 times [2022-03-19 13:48:29,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:29,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2104152426] [2022-03-19 13:48:29,053 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:29,054 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:29,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1997888097, now seen corresponding path program 2 times [2022-03-19 13:48:29,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:29,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14225788] [2022-03-19 13:48:29,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:29,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:29,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-03-19 13:48:29,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:29,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14225788] [2022-03-19 13:48:29,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14225788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:29,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:29,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:29,139 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:29,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2104152426] [2022-03-19 13:48:29,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2104152426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:29,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:29,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:29,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693161552] [2022-03-19 13:48:29,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:29,140 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:29,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:29,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:29,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:29,140 INFO L87 Difference]: Start difference. First operand 337 states and 541 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) [2022-03-19 13:48:30,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:32,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:34,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:35,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:35,403 INFO L93 Difference]: Finished difference Result 728 states and 1166 transitions. [2022-03-19 13:48:35,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:35,403 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 108 [2022-03-19 13:48:35,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:35,405 INFO L225 Difference]: With dead ends: 728 [2022-03-19 13:48:35,405 INFO L226 Difference]: Without dead ends: 417 [2022-03-19 13:48:35,406 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:35,406 INFO L912 BasicCegarLoop]: 122 mSDtfsCounter, 148 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:35,406 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 356 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 478 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-03-19 13:48:35,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-03-19 13:48:35,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 337. [2022-03-19 13:48:35,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 332 states have (on average 1.6024096385542168) internal successors, (532), 332 states have internal predecessors, (532), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:35,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 536 transitions. [2022-03-19 13:48:35,418 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 536 transitions. Word has length 108 [2022-03-19 13:48:35,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:35,418 INFO L478 AbstractCegarLoop]: Abstraction has 337 states and 536 transitions. [2022-03-19 13:48:35,418 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) [2022-03-19 13:48:35,419 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 536 transitions. [2022-03-19 13:48:35,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-19 13:48:35,419 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:35,419 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:35,419 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 13:48:35,420 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:35,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash 71049218, now seen corresponding path program 1 times [2022-03-19 13:48:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:35,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [930885789] [2022-03-19 13:48:35,429 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:35,430 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:35,430 INFO L85 PathProgramCache]: Analyzing trace with hash 71049218, now seen corresponding path program 2 times [2022-03-19 13:48:35,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:35,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099726540] [2022-03-19 13:48:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:35,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:35,559 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-19 13:48:35,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:35,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099726540] [2022-03-19 13:48:35,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099726540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:35,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:35,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:35,561 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:35,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [930885789] [2022-03-19 13:48:35,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [930885789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:35,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:35,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:35,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197548292] [2022-03-19 13:48:35,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:35,562 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:35,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:35,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:35,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:35,562 INFO L87 Difference]: Start difference. First operand 337 states and 536 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:37,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:37,916 INFO L93 Difference]: Finished difference Result 660 states and 1057 transitions. [2022-03-19 13:48:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-03-19 13:48:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:37,918 INFO L225 Difference]: With dead ends: 660 [2022-03-19 13:48:37,918 INFO L226 Difference]: Without dead ends: 349 [2022-03-19 13:48:37,919 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:37,919 INFO L912 BasicCegarLoop]: 232 mSDtfsCounter, 20 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:37,919 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 582 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 394 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:48:37,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-03-19 13:48:37,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 337. [2022-03-19 13:48:37,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 332 states have (on average 1.5993975903614457) internal successors, (531), 332 states have internal predecessors, (531), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:37,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 535 transitions. [2022-03-19 13:48:37,930 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 535 transitions. Word has length 114 [2022-03-19 13:48:37,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:37,931 INFO L478 AbstractCegarLoop]: Abstraction has 337 states and 535 transitions. [2022-03-19 13:48:37,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:37,931 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 535 transitions. [2022-03-19 13:48:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-19 13:48:37,932 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:37,932 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:37,932 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 13:48:37,932 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:37,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:37,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1812573514, now seen corresponding path program 1 times [2022-03-19 13:48:37,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:37,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [608481596] [2022-03-19 13:48:37,941 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:37,941 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:37,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1812573514, now seen corresponding path program 2 times [2022-03-19 13:48:37,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:37,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259520628] [2022-03-19 13:48:37,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:37,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:38,024 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-19 13:48:38,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:38,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259520628] [2022-03-19 13:48:38,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259520628] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:38,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:38,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:38,025 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:38,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [608481596] [2022-03-19 13:48:38,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [608481596] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:38,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:38,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:38,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650256167] [2022-03-19 13:48:38,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:38,025 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:38,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:38,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:38,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:38,026 INFO L87 Difference]: Start difference. First operand 337 states and 535 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:40,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:40,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:40,490 INFO L93 Difference]: Finished difference Result 727 states and 1153 transitions. [2022-03-19 13:48:40,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:40,490 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 114 [2022-03-19 13:48:40,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:40,500 INFO L225 Difference]: With dead ends: 727 [2022-03-19 13:48:40,500 INFO L226 Difference]: Without dead ends: 416 [2022-03-19 13:48:40,502 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:40,502 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 146 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:40,503 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 358 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:48:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-03-19 13:48:40,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 337. [2022-03-19 13:48:40,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 332 states have (on average 1.5843373493975903) internal successors, (526), 332 states have internal predecessors, (526), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:40,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 530 transitions. [2022-03-19 13:48:40,535 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 530 transitions. Word has length 114 [2022-03-19 13:48:40,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:40,535 INFO L478 AbstractCegarLoop]: Abstraction has 337 states and 530 transitions. [2022-03-19 13:48:40,535 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:40,535 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 530 transitions. [2022-03-19 13:48:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-19 13:48:40,536 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:40,536 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:40,536 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 13:48:40,537 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:40,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:40,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1936694571, now seen corresponding path program 1 times [2022-03-19 13:48:40,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:40,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1894683098] [2022-03-19 13:48:40,551 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:40,551 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:40,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1936694571, now seen corresponding path program 2 times [2022-03-19 13:48:40,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:40,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60466640] [2022-03-19 13:48:40,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:40,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:40,653 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-19 13:48:40,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:40,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60466640] [2022-03-19 13:48:40,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60466640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:40,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:40,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:40,654 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:40,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1894683098] [2022-03-19 13:48:40,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1894683098] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:40,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:40,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:40,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732601740] [2022-03-19 13:48:40,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:40,654 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:40,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:40,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:40,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:40,655 INFO L87 Difference]: Start difference. First operand 337 states and 530 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:41,937 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:43,957 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:45,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:47,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:47,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:47,733 INFO L93 Difference]: Finished difference Result 727 states and 1143 transitions. [2022-03-19 13:48:47,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:47,734 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 115 [2022-03-19 13:48:47,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:47,740 INFO L225 Difference]: With dead ends: 727 [2022-03-19 13:48:47,740 INFO L226 Difference]: Without dead ends: 416 [2022-03-19 13:48:47,741 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:47,741 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 151 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 62 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:47,741 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 358 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 475 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-03-19 13:48:47,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-03-19 13:48:47,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 337. [2022-03-19 13:48:47,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 332 states have (on average 1.5662650602409638) internal successors, (520), 332 states have internal predecessors, (520), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:47,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 524 transitions. [2022-03-19 13:48:47,753 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 524 transitions. Word has length 115 [2022-03-19 13:48:47,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:47,753 INFO L478 AbstractCegarLoop]: Abstraction has 337 states and 524 transitions. [2022-03-19 13:48:47,753 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:47,753 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 524 transitions. [2022-03-19 13:48:47,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-03-19 13:48:47,783 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:47,783 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:47,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 13:48:47,784 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:47,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:47,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1080592946, now seen corresponding path program 1 times [2022-03-19 13:48:47,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:47,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [847170068] [2022-03-19 13:48:47,795 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:47,795 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:47,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1080592946, now seen corresponding path program 2 times [2022-03-19 13:48:47,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:47,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290467196] [2022-03-19 13:48:47,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:47,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:47,880 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-19 13:48:47,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:47,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290467196] [2022-03-19 13:48:47,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290467196] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:47,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:47,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:47,881 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:47,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [847170068] [2022-03-19 13:48:47,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [847170068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:47,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:47,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:47,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695990587] [2022-03-19 13:48:47,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:47,881 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:47,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:47,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:47,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:47,882 INFO L87 Difference]: Start difference. First operand 337 states and 524 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:49,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:51,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:54,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:54,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:54,447 INFO L93 Difference]: Finished difference Result 665 states and 1041 transitions. [2022-03-19 13:48:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:54,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 116 [2022-03-19 13:48:54,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:54,448 INFO L225 Difference]: With dead ends: 665 [2022-03-19 13:48:54,448 INFO L226 Difference]: Without dead ends: 354 [2022-03-19 13:48:54,449 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:54,449 INFO L912 BasicCegarLoop]: 203 mSDtfsCounter, 36 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:54,450 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 523 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 391 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-19 13:48:54,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-03-19 13:48:54,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 337. [2022-03-19 13:48:54,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 332 states have (on average 1.5632530120481927) internal successors, (519), 332 states have internal predecessors, (519), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:54,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 523 transitions. [2022-03-19 13:48:54,474 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 523 transitions. Word has length 116 [2022-03-19 13:48:54,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:54,474 INFO L478 AbstractCegarLoop]: Abstraction has 337 states and 523 transitions. [2022-03-19 13:48:54,475 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:54,475 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 523 transitions. [2022-03-19 13:48:54,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-19 13:48:54,476 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:54,476 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:54,476 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-19 13:48:54,476 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:54,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:54,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2009900013, now seen corresponding path program 1 times [2022-03-19 13:48:54,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:54,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [880438315] [2022-03-19 13:48:54,494 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:54,494 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash -2009900013, now seen corresponding path program 2 times [2022-03-19 13:48:54,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:54,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433810752] [2022-03-19 13:48:54,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:54,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:54,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:54,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:54,641 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-03-19 13:48:54,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:54,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433810752] [2022-03-19 13:48:54,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433810752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:54,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:54,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:54,642 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:54,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [880438315] [2022-03-19 13:48:54,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [880438315] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:54,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:54,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:54,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973192231] [2022-03-19 13:48:54,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:54,643 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:54,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:54,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:54,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:54,643 INFO L87 Difference]: Start difference. First operand 337 states and 523 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:56,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:56,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:56,968 INFO L93 Difference]: Finished difference Result 655 states and 1026 transitions. [2022-03-19 13:48:56,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:56,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-19 13:48:56,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:56,970 INFO L225 Difference]: With dead ends: 655 [2022-03-19 13:48:56,970 INFO L226 Difference]: Without dead ends: 344 [2022-03-19 13:48:56,970 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:48:56,971 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 26 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:56,971 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 537 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:48:56,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-03-19 13:48:57,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 337. [2022-03-19 13:48:57,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 332 states have (on average 1.5602409638554218) internal successors, (518), 332 states have internal predecessors, (518), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:57,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 522 transitions. [2022-03-19 13:48:57,002 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 522 transitions. Word has length 118 [2022-03-19 13:48:57,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:57,003 INFO L478 AbstractCegarLoop]: Abstraction has 337 states and 522 transitions. [2022-03-19 13:48:57,003 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:57,003 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 522 transitions. [2022-03-19 13:48:57,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-03-19 13:48:57,004 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:57,004 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:57,004 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-19 13:48:57,004 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:57,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:57,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1085303227, now seen corresponding path program 1 times [2022-03-19 13:48:57,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:57,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1461366386] [2022-03-19 13:48:57,028 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:48:57,028 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:57,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1085303227, now seen corresponding path program 2 times [2022-03-19 13:48:57,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:57,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347067307] [2022-03-19 13:48:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:57,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:57,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 13:48:57,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:57,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347067307] [2022-03-19 13:48:57,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347067307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:57,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:57,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:57,189 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:57,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1461366386] [2022-03-19 13:48:57,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1461366386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:57,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:57,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:57,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111505046] [2022-03-19 13:48:57,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:57,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:57,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:57,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:57,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:57,190 INFO L87 Difference]: Start difference. First operand 337 states and 522 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:48:58,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:48:59,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:01,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:02,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:02,379 INFO L93 Difference]: Finished difference Result 767 states and 1193 transitions. [2022-03-19 13:49:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:02,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-03-19 13:49:02,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:02,380 INFO L225 Difference]: With dead ends: 767 [2022-03-19 13:49:02,380 INFO L226 Difference]: Without dead ends: 456 [2022-03-19 13:49:02,381 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:02,381 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 125 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:02,382 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 358 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-03-19 13:49:02,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-03-19 13:49:02,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 374. [2022-03-19 13:49:02,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 369 states have (on average 1.5663956639566397) internal successors, (578), 369 states have internal predecessors, (578), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:02,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 582 transitions. [2022-03-19 13:49:02,395 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 582 transitions. Word has length 122 [2022-03-19 13:49:02,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:02,396 INFO L478 AbstractCegarLoop]: Abstraction has 374 states and 582 transitions. [2022-03-19 13:49:02,396 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:02,396 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 582 transitions. [2022-03-19 13:49:02,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-19 13:49:02,396 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:02,396 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:02,397 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-19 13:49:02,397 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:02,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:02,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1777360167, now seen corresponding path program 1 times [2022-03-19 13:49:02,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:02,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [255290789] [2022-03-19 13:49:02,407 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:02,407 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:02,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1777360167, now seen corresponding path program 2 times [2022-03-19 13:49:02,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:02,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013185654] [2022-03-19 13:49:02,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:02,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 13:49:02,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:02,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013185654] [2022-03-19 13:49:02,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013185654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:02,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:02,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:02,491 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:02,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [255290789] [2022-03-19 13:49:02,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [255290789] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:02,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:02,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:02,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837606035] [2022-03-19 13:49:02,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:02,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:02,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:02,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:02,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:02,492 INFO L87 Difference]: Start difference. First operand 374 states and 582 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:03,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:05,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:07,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:08,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:08,411 INFO L93 Difference]: Finished difference Result 815 states and 1274 transitions. [2022-03-19 13:49:08,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:08,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-19 13:49:08,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:08,412 INFO L225 Difference]: With dead ends: 815 [2022-03-19 13:49:08,412 INFO L226 Difference]: Without dead ends: 467 [2022-03-19 13:49:08,413 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:08,414 INFO L912 BasicCegarLoop]: 185 mSDtfsCounter, 81 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:08,414 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 489 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-19 13:49:08,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-03-19 13:49:08,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 414. [2022-03-19 13:49:08,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 409 states have (on average 1.569682151589242) internal successors, (642), 409 states have internal predecessors, (642), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:08,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 646 transitions. [2022-03-19 13:49:08,429 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 646 transitions. Word has length 123 [2022-03-19 13:49:08,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:08,430 INFO L478 AbstractCegarLoop]: Abstraction has 414 states and 646 transitions. [2022-03-19 13:49:08,430 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:08,430 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 646 transitions. [2022-03-19 13:49:08,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-19 13:49:08,430 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:08,431 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:08,431 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-19 13:49:08,431 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:08,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:08,431 INFO L85 PathProgramCache]: Analyzing trace with hash -783502679, now seen corresponding path program 1 times [2022-03-19 13:49:08,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:08,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1982326790] [2022-03-19 13:49:08,455 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:08,456 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:08,456 INFO L85 PathProgramCache]: Analyzing trace with hash -783502679, now seen corresponding path program 2 times [2022-03-19 13:49:08,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:08,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352692452] [2022-03-19 13:49:08,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:08,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-19 13:49:08,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:08,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352692452] [2022-03-19 13:49:08,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352692452] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:08,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:08,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:08,541 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:08,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1982326790] [2022-03-19 13:49:08,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1982326790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:08,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:08,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:08,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227300876] [2022-03-19 13:49:08,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:08,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:08,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:08,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:08,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:08,542 INFO L87 Difference]: Start difference. First operand 414 states and 646 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:11,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:13,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:15,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:15,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:15,662 INFO L93 Difference]: Finished difference Result 848 states and 1329 transitions. [2022-03-19 13:49:15,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:15,663 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-19 13:49:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:15,664 INFO L225 Difference]: With dead ends: 848 [2022-03-19 13:49:15,664 INFO L226 Difference]: Without dead ends: 460 [2022-03-19 13:49:15,665 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:15,665 INFO L912 BasicCegarLoop]: 249 mSDtfsCounter, 36 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:15,665 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 615 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 459 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-03-19 13:49:15,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-03-19 13:49:15,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 438. [2022-03-19 13:49:15,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 433 states have (on average 1.5658198614318706) internal successors, (678), 433 states have internal predecessors, (678), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:15,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 682 transitions. [2022-03-19 13:49:15,682 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 682 transitions. Word has length 123 [2022-03-19 13:49:15,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:15,682 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 682 transitions. [2022-03-19 13:49:15,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:15,682 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 682 transitions. [2022-03-19 13:49:15,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-03-19 13:49:15,683 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:15,683 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:15,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-19 13:49:15,683 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:15,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:15,683 INFO L85 PathProgramCache]: Analyzing trace with hash -371331922, now seen corresponding path program 1 times [2022-03-19 13:49:15,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:15,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [196257902] [2022-03-19 13:49:15,696 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:15,696 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:15,696 INFO L85 PathProgramCache]: Analyzing trace with hash -371331922, now seen corresponding path program 2 times [2022-03-19 13:49:15,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:15,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183930783] [2022-03-19 13:49:15,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:15,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:15,843 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 13:49:15,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:15,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183930783] [2022-03-19 13:49:15,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183930783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:15,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:15,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:15,843 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:15,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [196257902] [2022-03-19 13:49:15,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [196257902] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:15,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:15,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:15,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980858299] [2022-03-19 13:49:15,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:15,844 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:15,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:15,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:15,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:15,844 INFO L87 Difference]: Start difference. First operand 438 states and 682 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:16,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:18,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:21,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:21,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:21,643 INFO L93 Difference]: Finished difference Result 969 states and 1512 transitions. [2022-03-19 13:49:21,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:21,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 130 [2022-03-19 13:49:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:21,652 INFO L225 Difference]: With dead ends: 969 [2022-03-19 13:49:21,652 INFO L226 Difference]: Without dead ends: 557 [2022-03-19 13:49:21,653 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:21,654 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 118 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:21,654 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 359 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-03-19 13:49:21,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2022-03-19 13:49:21,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 481. [2022-03-19 13:49:21,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.5714285714285714) internal successors, (748), 476 states have internal predecessors, (748), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 752 transitions. [2022-03-19 13:49:21,701 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 752 transitions. Word has length 130 [2022-03-19 13:49:21,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:21,702 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 752 transitions. [2022-03-19 13:49:21,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:21,702 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 752 transitions. [2022-03-19 13:49:21,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-03-19 13:49:21,703 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:21,703 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:21,703 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-19 13:49:21,703 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:21,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:21,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1074816506, now seen corresponding path program 1 times [2022-03-19 13:49:21,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:21,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [345978213] [2022-03-19 13:49:21,718 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:21,718 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:21,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1074816506, now seen corresponding path program 2 times [2022-03-19 13:49:21,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:21,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595864052] [2022-03-19 13:49:21,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:21,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:21,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 13:49:21,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:21,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595864052] [2022-03-19 13:49:21,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595864052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:21,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:21,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:21,848 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:21,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [345978213] [2022-03-19 13:49:21,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [345978213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:21,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:21,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:21,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811984845] [2022-03-19 13:49:21,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:21,849 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:21,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:21,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:21,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:21,849 INFO L87 Difference]: Start difference. First operand 481 states and 752 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:22,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:25,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:27,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:27,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:27,807 INFO L93 Difference]: Finished difference Result 1015 states and 1587 transitions. [2022-03-19 13:49:27,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:27,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-03-19 13:49:27,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:27,809 INFO L225 Difference]: With dead ends: 1015 [2022-03-19 13:49:27,809 INFO L226 Difference]: Without dead ends: 558 [2022-03-19 13:49:27,810 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:27,810 INFO L912 BasicCegarLoop]: 123 mSDtfsCounter, 119 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:27,810 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 358 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 476 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-03-19 13:49:27,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-19 13:49:27,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 483. [2022-03-19 13:49:27,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5711297071129706) internal successors, (751), 478 states have internal predecessors, (751), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:27,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 755 transitions. [2022-03-19 13:49:27,832 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 755 transitions. Word has length 131 [2022-03-19 13:49:27,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:27,832 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 755 transitions. [2022-03-19 13:49:27,832 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:27,832 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 755 transitions. [2022-03-19 13:49:27,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-03-19 13:49:27,833 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:27,833 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:27,833 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-19 13:49:27,833 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:27,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:27,834 INFO L85 PathProgramCache]: Analyzing trace with hash -876520903, now seen corresponding path program 1 times [2022-03-19 13:49:27,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:27,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1314218838] [2022-03-19 13:49:27,847 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:27,848 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:27,848 INFO L85 PathProgramCache]: Analyzing trace with hash -876520903, now seen corresponding path program 2 times [2022-03-19 13:49:27,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:27,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119370019] [2022-03-19 13:49:27,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:27,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:27,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:27,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:27,989 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 13:49:27,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:27,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119370019] [2022-03-19 13:49:27,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119370019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:27,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:27,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:27,989 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:27,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1314218838] [2022-03-19 13:49:27,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1314218838] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:27,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:27,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:27,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019509616] [2022-03-19 13:49:27,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:27,990 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:27,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:27,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:27,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:27,991 INFO L87 Difference]: Start difference. First operand 483 states and 755 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:29,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:32,833 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:34,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:35,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:35,314 INFO L93 Difference]: Finished difference Result 1015 states and 1586 transitions. [2022-03-19 13:49:35,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:35,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-03-19 13:49:35,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:35,316 INFO L225 Difference]: With dead ends: 1015 [2022-03-19 13:49:35,316 INFO L226 Difference]: Without dead ends: 558 [2022-03-19 13:49:35,317 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:35,317 INFO L912 BasicCegarLoop]: 124 mSDtfsCounter, 147 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:35,319 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 360 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-03-19 13:49:35,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-03-19 13:49:35,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 483. [2022-03-19 13:49:35,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5523012552301256) internal successors, (742), 478 states have internal predecessors, (742), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:35,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 746 transitions. [2022-03-19 13:49:35,341 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 746 transitions. Word has length 139 [2022-03-19 13:49:35,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:35,341 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 746 transitions. [2022-03-19 13:49:35,341 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:35,341 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 746 transitions. [2022-03-19 13:49:35,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-03-19 13:49:35,342 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:35,342 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:35,342 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-19 13:49:35,342 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:35,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:35,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2065407828, now seen corresponding path program 1 times [2022-03-19 13:49:35,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:35,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [912793640] [2022-03-19 13:49:35,356 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:35,356 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:35,356 INFO L85 PathProgramCache]: Analyzing trace with hash 2065407828, now seen corresponding path program 2 times [2022-03-19 13:49:35,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:35,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117380031] [2022-03-19 13:49:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:35,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:35,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 13:49:35,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:35,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117380031] [2022-03-19 13:49:35,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117380031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:35,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:35,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:35,485 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:35,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [912793640] [2022-03-19 13:49:35,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [912793640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:35,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:35,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065776210] [2022-03-19 13:49:35,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:35,485 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:35,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:35,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:35,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:35,486 INFO L87 Difference]: Start difference. First operand 483 states and 746 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:38,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:40,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:41,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:41,433 INFO L93 Difference]: Finished difference Result 1005 states and 1555 transitions. [2022-03-19 13:49:41,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:41,433 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 141 [2022-03-19 13:49:41,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:41,434 INFO L225 Difference]: With dead ends: 1005 [2022-03-19 13:49:41,435 INFO L226 Difference]: Without dead ends: 548 [2022-03-19 13:49:41,435 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:41,436 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 137 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:41,436 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 396 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-03-19 13:49:41,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-03-19 13:49:41,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 483. [2022-03-19 13:49:41,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 478 states have (on average 1.5334728033472804) internal successors, (733), 478 states have internal predecessors, (733), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 737 transitions. [2022-03-19 13:49:41,498 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 737 transitions. Word has length 141 [2022-03-19 13:49:41,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:41,498 INFO L478 AbstractCegarLoop]: Abstraction has 483 states and 737 transitions. [2022-03-19 13:49:41,498 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:41,498 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 737 transitions. [2022-03-19 13:49:41,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-19 13:49:41,499 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:41,499 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:41,499 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-19 13:49:41,500 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:41,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:41,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1168543706, now seen corresponding path program 1 times [2022-03-19 13:49:41,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:41,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1821449332] [2022-03-19 13:49:41,525 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:41,525 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:41,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1168543706, now seen corresponding path program 2 times [2022-03-19 13:49:41,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:41,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165217334] [2022-03-19 13:49:41,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:41,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:41,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:41,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:41,711 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 13:49:41,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:41,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165217334] [2022-03-19 13:49:41,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165217334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:41,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:41,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:41,712 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:41,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1821449332] [2022-03-19 13:49:41,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1821449332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:41,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:41,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:41,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275871480] [2022-03-19 13:49:41,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:41,712 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:41,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:41,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:41,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:41,713 INFO L87 Difference]: Start difference. First operand 483 states and 737 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:43,723 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:44,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:44,161 INFO L93 Difference]: Finished difference Result 1047 states and 1603 transitions. [2022-03-19 13:49:44,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:44,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-19 13:49:44,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:44,166 INFO L225 Difference]: With dead ends: 1047 [2022-03-19 13:49:44,166 INFO L226 Difference]: Without dead ends: 590 [2022-03-19 13:49:44,167 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:44,167 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 121 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:44,167 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 396 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:49:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-03-19 13:49:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 513. [2022-03-19 13:49:44,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5216535433070866) internal successors, (773), 508 states have internal predecessors, (773), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 777 transitions. [2022-03-19 13:49:44,194 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 777 transitions. Word has length 143 [2022-03-19 13:49:44,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:44,194 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 777 transitions. [2022-03-19 13:49:44,195 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:44,195 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 777 transitions. [2022-03-19 13:49:44,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-19 13:49:44,196 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:44,196 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:44,196 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-19 13:49:44,196 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:44,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:44,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1081677761, now seen corresponding path program 1 times [2022-03-19 13:49:44,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:44,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [232948274] [2022-03-19 13:49:44,208 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:44,208 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1081677761, now seen corresponding path program 2 times [2022-03-19 13:49:44,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:44,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762280540] [2022-03-19 13:49:44,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:44,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:44,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:44,323 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 13:49:44,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:44,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762280540] [2022-03-19 13:49:44,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762280540] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:44,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:44,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:44,323 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:44,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [232948274] [2022-03-19 13:49:44,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [232948274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:44,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:44,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:44,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730267920] [2022-03-19 13:49:44,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:44,325 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:44,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:44,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:44,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:44,325 INFO L87 Difference]: Start difference. First operand 513 states and 777 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:47,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:49,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:49,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:49,408 INFO L93 Difference]: Finished difference Result 1036 states and 1576 transitions. [2022-03-19 13:49:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:49,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-03-19 13:49:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:49,410 INFO L225 Difference]: With dead ends: 1036 [2022-03-19 13:49:49,410 INFO L226 Difference]: Without dead ends: 549 [2022-03-19 13:49:49,410 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:49,411 INFO L912 BasicCegarLoop]: 196 mSDtfsCounter, 69 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:49,411 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 511 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-03-19 13:49:49,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-03-19 13:49:49,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 513. [2022-03-19 13:49:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5196850393700787) internal successors, (772), 508 states have internal predecessors, (772), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:49,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 776 transitions. [2022-03-19 13:49:49,436 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 776 transitions. Word has length 144 [2022-03-19 13:49:49,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:49,436 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 776 transitions. [2022-03-19 13:49:49,436 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 776 transitions. [2022-03-19 13:49:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-19 13:49:49,437 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:49,437 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:49,437 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-19 13:49:49,438 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:49,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:49,438 INFO L85 PathProgramCache]: Analyzing trace with hash -691185286, now seen corresponding path program 1 times [2022-03-19 13:49:49,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:49,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1365445933] [2022-03-19 13:49:49,452 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:49,452 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:49,452 INFO L85 PathProgramCache]: Analyzing trace with hash -691185286, now seen corresponding path program 2 times [2022-03-19 13:49:49,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:49,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539038131] [2022-03-19 13:49:49,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:49,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:49,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:49,594 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 13:49:49,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:49,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539038131] [2022-03-19 13:49:49,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539038131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:49,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:49,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:49,595 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:49,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1365445933] [2022-03-19 13:49:49,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1365445933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:49,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:49,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:49,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716265365] [2022-03-19 13:49:49,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:49,595 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:49,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:49,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:49,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:49,596 INFO L87 Difference]: Start difference. First operand 513 states and 776 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:52,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:54,336 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:54,796 INFO L93 Difference]: Finished difference Result 1065 states and 1615 transitions. [2022-03-19 13:49:54,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:54,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-19 13:49:54,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:54,798 INFO L225 Difference]: With dead ends: 1065 [2022-03-19 13:49:54,798 INFO L226 Difference]: Without dead ends: 578 [2022-03-19 13:49:54,799 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:49:54,800 INFO L912 BasicCegarLoop]: 141 mSDtfsCounter, 127 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:54,800 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 394 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 5.2s Time] [2022-03-19 13:49:54,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2022-03-19 13:49:54,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 513. [2022-03-19 13:49:54,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 508 states have (on average 1.5039370078740157) internal successors, (764), 508 states have internal predecessors, (764), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:54,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 768 transitions. [2022-03-19 13:49:54,830 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 768 transitions. Word has length 145 [2022-03-19 13:49:54,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:54,830 INFO L478 AbstractCegarLoop]: Abstraction has 513 states and 768 transitions. [2022-03-19 13:49:54,830 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:54,830 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 768 transitions. [2022-03-19 13:49:54,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-19 13:49:54,831 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:54,831 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:54,831 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-19 13:49:54,831 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:54,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:54,832 INFO L85 PathProgramCache]: Analyzing trace with hash 909885820, now seen corresponding path program 1 times [2022-03-19 13:49:54,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:54,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1115409853] [2022-03-19 13:49:54,845 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:54,845 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:54,845 INFO L85 PathProgramCache]: Analyzing trace with hash 909885820, now seen corresponding path program 2 times [2022-03-19 13:49:54,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:54,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564604688] [2022-03-19 13:49:54,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:54,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:54,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-03-19 13:49:54,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:54,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564604688] [2022-03-19 13:49:54,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564604688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:54,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:54,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:49:54,944 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:54,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1115409853] [2022-03-19 13:49:54,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1115409853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:54,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:54,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:49:54,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983684926] [2022-03-19 13:49:54,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:54,945 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:49:54,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:54,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:49:54,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:49:54,945 INFO L87 Difference]: Start difference. First operand 513 states and 768 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:56,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:49:57,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:57,282 INFO L93 Difference]: Finished difference Result 1482 states and 2238 transitions. [2022-03-19 13:49:57,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:49:57,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-19 13:49:57,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:57,286 INFO L225 Difference]: With dead ends: 1482 [2022-03-19 13:49:57,286 INFO L226 Difference]: Without dead ends: 995 [2022-03-19 13:49:57,287 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:49:57,287 INFO L912 BasicCegarLoop]: 239 mSDtfsCounter, 141 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:57,288 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 433 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 287 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:49:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2022-03-19 13:49:57,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 993. [2022-03-19 13:49:57,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 988 states have (on average 1.5010121457489878) internal successors, (1483), 988 states have internal predecessors, (1483), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:57,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1487 transitions. [2022-03-19 13:49:57,342 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1487 transitions. Word has length 145 [2022-03-19 13:49:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:57,342 INFO L478 AbstractCegarLoop]: Abstraction has 993 states and 1487 transitions. [2022-03-19 13:49:57,342 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1487 transitions. [2022-03-19 13:49:57,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-03-19 13:49:57,352 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:57,352 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:57,352 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-19 13:49:57,352 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:57,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:57,353 INFO L85 PathProgramCache]: Analyzing trace with hash -935481346, now seen corresponding path program 1 times [2022-03-19 13:49:57,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:57,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1586877467] [2022-03-19 13:49:57,366 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:49:57,366 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:57,366 INFO L85 PathProgramCache]: Analyzing trace with hash -935481346, now seen corresponding path program 2 times [2022-03-19 13:49:57,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:57,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425357867] [2022-03-19 13:49:57,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:57,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:57,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-03-19 13:49:57,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:57,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425357867] [2022-03-19 13:49:57,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425357867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:57,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:57,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:57,460 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:57,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1586877467] [2022-03-19 13:49:57,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1586877467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:57,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:57,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:57,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211850424] [2022-03-19 13:49:57,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:57,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:57,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:57,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:57,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:57,462 INFO L87 Difference]: Start difference. First operand 993 states and 1487 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:58,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:00,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:02,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:04,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:50:04,016 INFO L93 Difference]: Finished difference Result 2085 states and 3114 transitions. [2022-03-19 13:50:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:50:04,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-03-19 13:50:04,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:50:04,019 INFO L225 Difference]: With dead ends: 2085 [2022-03-19 13:50:04,019 INFO L226 Difference]: Without dead ends: 1118 [2022-03-19 13:50:04,021 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:50:04,022 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 113 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-03-19 13:50:04,022 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 396 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-03-19 13:50:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-03-19 13:50:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 979. [2022-03-19 13:50:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 974 states have (on average 1.4938398357289528) internal successors, (1455), 974 states have internal predecessors, (1455), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:04,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1459 transitions. [2022-03-19 13:50:04,077 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1459 transitions. Word has length 145 [2022-03-19 13:50:04,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:50:04,078 INFO L478 AbstractCegarLoop]: Abstraction has 979 states and 1459 transitions. [2022-03-19 13:50:04,078 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:04,078 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1459 transitions. [2022-03-19 13:50:04,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-03-19 13:50:04,079 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:50:04,079 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:50:04,079 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-19 13:50:04,080 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:50:04,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:50:04,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1583670423, now seen corresponding path program 1 times [2022-03-19 13:50:04,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:04,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1664363609] [2022-03-19 13:50:04,100 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:50:04,100 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:50:04,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1583670423, now seen corresponding path program 2 times [2022-03-19 13:50:04,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:50:04,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96460571] [2022-03-19 13:50:04,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:50:04,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:50:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:04,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:50:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 13:50:04,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:50:04,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96460571] [2022-03-19 13:50:04,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96460571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:04,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:04,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:04,188 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:50:04,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1664363609] [2022-03-19 13:50:04,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1664363609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:04,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:04,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:04,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250636898] [2022-03-19 13:50:04,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:50:04,189 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:50:04,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:04,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:50:04,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:50:04,189 INFO L87 Difference]: Start difference. First operand 979 states and 1459 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:06,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:08,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:10,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:50:10,019 INFO L93 Difference]: Finished difference Result 2141 states and 3184 transitions. [2022-03-19 13:50:10,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:50:10,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-03-19 13:50:10,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:50:10,023 INFO L225 Difference]: With dead ends: 2141 [2022-03-19 13:50:10,023 INFO L226 Difference]: Without dead ends: 1188 [2022-03-19 13:50:10,024 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:50:10,035 INFO L912 BasicCegarLoop]: 142 mSDtfsCounter, 122 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 50 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:50:10,036 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 396 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 13:50:10,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2022-03-19 13:50:10,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1035. [2022-03-19 13:50:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1030 states have (on average 1.478640776699029) internal successors, (1523), 1030 states have internal predecessors, (1523), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1527 transitions. [2022-03-19 13:50:10,100 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1527 transitions. Word has length 147 [2022-03-19 13:50:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:50:10,100 INFO L478 AbstractCegarLoop]: Abstraction has 1035 states and 1527 transitions. [2022-03-19 13:50:10,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 4 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:10,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1527 transitions. [2022-03-19 13:50:10,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-19 13:50:10,102 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:50:10,102 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:50:10,102 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-19 13:50:10,102 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:50:10,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:50:10,103 INFO L85 PathProgramCache]: Analyzing trace with hash 2101116514, now seen corresponding path program 1 times [2022-03-19 13:50:10,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:10,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1537016304] [2022-03-19 13:50:10,135 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:50:10,136 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:50:10,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2101116514, now seen corresponding path program 2 times [2022-03-19 13:50:10,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:50:10,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251140518] [2022-03-19 13:50:10,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:50:10,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:50:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:50:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-03-19 13:50:10,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:50:10,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251140518] [2022-03-19 13:50:10,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251140518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:10,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:10,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:10,232 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:50:10,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1537016304] [2022-03-19 13:50:10,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1537016304] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:10,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:10,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:10,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516503473] [2022-03-19 13:50:10,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:50:10,232 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:50:10,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:10,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:50:10,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:50:10,233 INFO L87 Difference]: Start difference. First operand 1035 states and 1527 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:11,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:13,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:15,438 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:16,640 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:17,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:50:17,107 INFO L93 Difference]: Finished difference Result 2113 states and 3117 transitions. [2022-03-19 13:50:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:50:17,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-19 13:50:17,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:50:17,110 INFO L225 Difference]: With dead ends: 2113 [2022-03-19 13:50:17,111 INFO L226 Difference]: Without dead ends: 1104 [2022-03-19 13:50:17,123 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:50:17,123 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 59 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-03-19 13:50:17,123 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 543 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-03-19 13:50:17,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-03-19 13:50:17,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1035. [2022-03-19 13:50:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 1030 states have (on average 1.4766990291262136) internal successors, (1521), 1030 states have internal predecessors, (1521), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:17,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1525 transitions. [2022-03-19 13:50:17,184 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1525 transitions. Word has length 148 [2022-03-19 13:50:17,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:50:17,198 INFO L478 AbstractCegarLoop]: Abstraction has 1035 states and 1525 transitions. [2022-03-19 13:50:17,198 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:17,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1525 transitions. [2022-03-19 13:50:17,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-03-19 13:50:17,200 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:50:17,200 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:50:17,201 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-19 13:50:17,201 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:50:17,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:50:17,201 INFO L85 PathProgramCache]: Analyzing trace with hash 82591744, now seen corresponding path program 1 times [2022-03-19 13:50:17,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:17,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [741664376] [2022-03-19 13:50:17,217 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:50:17,217 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:50:17,217 INFO L85 PathProgramCache]: Analyzing trace with hash 82591744, now seen corresponding path program 2 times [2022-03-19 13:50:17,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:50:17,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576936568] [2022-03-19 13:50:17,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:50:17,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:50:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:50:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:17,308 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-19 13:50:17,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:50:17,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576936568] [2022-03-19 13:50:17,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576936568] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:17,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:17,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:17,308 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:50:17,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [741664376] [2022-03-19 13:50:17,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [741664376] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:17,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:17,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:17,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392841629] [2022-03-19 13:50:17,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:50:17,309 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:50:17,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:17,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:50:17,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:50:17,309 INFO L87 Difference]: Start difference. First operand 1035 states and 1525 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:19,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:21,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:22,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:23,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:50:23,098 INFO L93 Difference]: Finished difference Result 2113 states and 3113 transitions. [2022-03-19 13:50:23,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:50:23,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2022-03-19 13:50:23,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:50:23,102 INFO L225 Difference]: With dead ends: 2113 [2022-03-19 13:50:23,102 INFO L226 Difference]: Without dead ends: 1104 [2022-03-19 13:50:23,103 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:50:23,103 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 52 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-03-19 13:50:23,103 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 543 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-03-19 13:50:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2022-03-19 13:50:23,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1043. [2022-03-19 13:50:23,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1038 states have (on average 1.476878612716763) internal successors, (1533), 1038 states have internal predecessors, (1533), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:23,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1537 transitions. [2022-03-19 13:50:23,166 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1537 transitions. Word has length 155 [2022-03-19 13:50:23,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:50:23,166 INFO L478 AbstractCegarLoop]: Abstraction has 1043 states and 1537 transitions. [2022-03-19 13:50:23,166 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1537 transitions. [2022-03-19 13:50:23,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-03-19 13:50:23,168 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:50:23,168 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:50:23,168 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-19 13:50:23,168 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:50:23,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:50:23,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1451116876, now seen corresponding path program 1 times [2022-03-19 13:50:23,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:23,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [758885176] [2022-03-19 13:50:23,198 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:50:23,198 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:50:23,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1451116876, now seen corresponding path program 2 times [2022-03-19 13:50:23,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:50:23,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198325682] [2022-03-19 13:50:23,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:50:23,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:50:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:23,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:50:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-03-19 13:50:23,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:50:23,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198325682] [2022-03-19 13:50:23,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198325682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:23,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:23,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:23,288 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:50:23,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [758885176] [2022-03-19 13:50:23,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [758885176] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:23,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:23,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:23,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718732468] [2022-03-19 13:50:23,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:50:23,288 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:50:23,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:23,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:50:23,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:50:23,289 INFO L87 Difference]: Start difference. First operand 1043 states and 1537 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:25,348 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:28,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:28,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:50:28,673 INFO L93 Difference]: Finished difference Result 2115 states and 3116 transitions. [2022-03-19 13:50:28,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:50:28,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 156 [2022-03-19 13:50:28,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:50:28,677 INFO L225 Difference]: With dead ends: 2115 [2022-03-19 13:50:28,677 INFO L226 Difference]: Without dead ends: 1098 [2022-03-19 13:50:28,679 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:50:28,679 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 47 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:50:28,680 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 545 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-03-19 13:50:28,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2022-03-19 13:50:28,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1045. [2022-03-19 13:50:28,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1040 states have (on average 1.4759615384615385) internal successors, (1535), 1040 states have internal predecessors, (1535), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:28,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1539 transitions. [2022-03-19 13:50:28,753 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1539 transitions. Word has length 156 [2022-03-19 13:50:28,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:50:28,754 INFO L478 AbstractCegarLoop]: Abstraction has 1045 states and 1539 transitions. [2022-03-19 13:50:28,754 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1539 transitions. [2022-03-19 13:50:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-03-19 13:50:28,756 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:50:28,756 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:50:28,756 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-19 13:50:28,756 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:50:28,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:50:28,756 INFO L85 PathProgramCache]: Analyzing trace with hash 124320522, now seen corresponding path program 1 times [2022-03-19 13:50:28,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:28,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1784566888] [2022-03-19 13:50:28,773 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:50:28,773 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:50:28,773 INFO L85 PathProgramCache]: Analyzing trace with hash 124320522, now seen corresponding path program 2 times [2022-03-19 13:50:28,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:50:28,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025458898] [2022-03-19 13:50:28,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:50:28,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:50:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:28,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:50:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:28,867 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-03-19 13:50:28,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:50:28,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025458898] [2022-03-19 13:50:28,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025458898] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:28,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:28,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:28,868 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:50:28,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1784566888] [2022-03-19 13:50:28,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1784566888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:28,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:28,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:50:28,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027918568] [2022-03-19 13:50:28,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:50:28,868 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:50:28,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:28,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:50:28,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:50:28,869 INFO L87 Difference]: Start difference. First operand 1045 states and 1539 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:31,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:33,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:35,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:36,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:50:36,323 INFO L93 Difference]: Finished difference Result 2143 states and 3160 transitions. [2022-03-19 13:50:36,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:50:36,324 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 166 [2022-03-19 13:50:36,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:50:36,327 INFO L225 Difference]: With dead ends: 2143 [2022-03-19 13:50:36,327 INFO L226 Difference]: Without dead ends: 1124 [2022-03-19 13:50:36,328 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-19 13:50:36,329 INFO L912 BasicCegarLoop]: 242 mSDtfsCounter, 29 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:50:36,329 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 601 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 443 Invalid, 3 Unknown, 0 Unchecked, 7.4s Time] [2022-03-19 13:50:36,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2022-03-19 13:50:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1097. [2022-03-19 13:50:36,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1092 states have (on average 1.4734432234432235) internal successors, (1609), 1092 states have internal predecessors, (1609), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:36,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1613 transitions. [2022-03-19 13:50:36,408 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1613 transitions. Word has length 166 [2022-03-19 13:50:36,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:50:36,408 INFO L478 AbstractCegarLoop]: Abstraction has 1097 states and 1613 transitions. [2022-03-19 13:50:36,408 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:36,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1613 transitions. [2022-03-19 13:50:36,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-19 13:50:36,409 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:50:36,410 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:50:36,410 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-19 13:50:36,410 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:50:36,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:50:36,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1790268022, now seen corresponding path program 1 times [2022-03-19 13:50:36,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:36,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1144205783] [2022-03-19 13:50:36,428 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:50:36,429 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:50:36,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1790268022, now seen corresponding path program 2 times [2022-03-19 13:50:36,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:50:36,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470468720] [2022-03-19 13:50:36,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:50:36,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:50:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:50:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:36,779 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-03-19 13:50:36,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:50:36,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470468720] [2022-03-19 13:50:36,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470468720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:36,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:36,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 13:50:36,780 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:50:36,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1144205783] [2022-03-19 13:50:36,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1144205783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:50:36,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:50:36,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-19 13:50:36,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280731302] [2022-03-19 13:50:36,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:50:36,781 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-19 13:50:36,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:36,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-19 13:50:36,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-03-19 13:50:36,782 INFO L87 Difference]: Start difference. First operand 1097 states and 1613 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:37,819 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:38,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:40,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:42,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:44,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:50:45,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:50:45,285 INFO L93 Difference]: Finished difference Result 2187 states and 3218 transitions. [2022-03-19 13:50:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-19 13:50:45,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 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 171 [2022-03-19 13:50:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:50:45,290 INFO L225 Difference]: With dead ends: 2187 [2022-03-19 13:50:45,291 INFO L226 Difference]: Without dead ends: 1097 [2022-03-19 13:50:45,292 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-19 13:50:45,292 INFO L912 BasicCegarLoop]: 213 mSDtfsCounter, 7 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:50:45,292 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 862 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 446 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2022-03-19 13:50:45,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2022-03-19 13:50:45,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2022-03-19 13:50:45,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 1092 states have (on average 1.4725274725274726) internal successors, (1608), 1092 states have internal predecessors, (1608), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:45,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1612 transitions. [2022-03-19 13:50:45,381 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1612 transitions. Word has length 171 [2022-03-19 13:50:45,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:50:45,381 INFO L478 AbstractCegarLoop]: Abstraction has 1097 states and 1612 transitions. [2022-03-19 13:50:45,381 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:50:45,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1612 transitions. [2022-03-19 13:50:45,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-03-19 13:50:45,383 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:50:45,383 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:50:45,383 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-19 13:50:45,383 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:50:45,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:50:45,384 INFO L85 PathProgramCache]: Analyzing trace with hash -132982408, now seen corresponding path program 1 times [2022-03-19 13:50:45,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:50:45,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [606383767] [2022-03-19 13:50:45,403 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-03-19 13:50:45,403 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:50:45,403 INFO L85 PathProgramCache]: Analyzing trace with hash -132982408, now seen corresponding path program 2 times [2022-03-19 13:50:45,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:50:45,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213503826] [2022-03-19 13:50:45,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:50:45,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:50:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:46,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:50:46,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:50:46,149 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 14 proven. 174 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-03-19 13:50:46,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:50:46,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213503826] [2022-03-19 13:50:46,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213503826] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 13:50:46,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111049583] [2022-03-19 13:50:46,150 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 13:50:46,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 13:50:46,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:50:46,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 13:50:46,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-19 13:51:07,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 13:51:07,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 13:51:07,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 247 conjunts are in the unsatisfiable core [2022-03-19 13:51:07,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 13:51:08,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 17 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28153 treesize of output 23896 [2022-03-19 13:51:08,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:51:08,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 20 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10709 treesize of output 1662