/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_clnt.blast.01.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 13:38:39,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 13:38:39,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 13:38:39,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 13:38:39,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 13:38:39,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 13:38:39,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 13:38:39,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 13:38:39,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 13:38:39,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 13:38:39,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 13:38:39,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 13:38:39,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 13:38:39,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 13:38:39,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 13:38:39,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 13:38:39,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 13:38:39,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 13:38:39,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 13:38:39,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 13:38:39,605 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 13:38:39,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 13:38:39,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 13:38:39,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 13:38:39,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 13:38:39,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-19 13:38:39,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 13:38:39,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 13:38:39,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 13:38:39,628 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 13:38:39,635 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 13:38:39,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 13:38:39,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 13:38:39,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 13:38:39,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 13:38:39,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 13:38:39,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 13:38:39,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 13:38:39,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 13:38:39,637 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 13:38:39,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 13:38:39,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 13:38:39,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 13:38:39,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 13:38:39,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 13:38:39,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:38:39,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 13:38:39,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 13:38:39,638 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 13:38:39,638 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 13:38:39,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 13:38:39,638 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-19 13:38:39,638 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 13:38:39,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 13:38:39,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 13:38:39,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 13:38:39,861 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 13:38:39,862 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 13:38:39,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-19 13:38:39,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2e8df0bc/a1417cbe1cdd4481ac2f6cc6b8dac86b/FLAG74922eee6 [2022-03-19 13:38:40,383 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 13:38:40,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_clnt.blast.01.i.cil-1.c [2022-03-19 13:38:40,407 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2e8df0bc/a1417cbe1cdd4481ac2f6cc6b8dac86b/FLAG74922eee6 [2022-03-19 13:38:40,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2e8df0bc/a1417cbe1cdd4481ac2f6cc6b8dac86b [2022-03-19 13:38:40,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 13:38:40,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 13:38:40,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 13:38:40,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 13:38:40,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 13:38:40,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8f8c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40, skipping insertion in model container [2022-03-19 13:38:40,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 13:38:40,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 13:38:40,773 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_clnt.blast.01.i.cil-1.c[65523,65536] [2022-03-19 13:38:40,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:38:40,795 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 13:38:40,872 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_clnt.blast.01.i.cil-1.c[65523,65536] [2022-03-19 13:38:40,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 13:38:40,884 INFO L208 MainTranslator]: Completed translation [2022-03-19 13:38:40,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40 WrapperNode [2022-03-19 13:38:40,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 13:38:40,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 13:38:40,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 13:38:40,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 13:38:40,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 13:38:40,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 13:38:40,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 13:38:40,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 13:38:40,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40" (1/1) ... [2022-03-19 13:38:40,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 13:38:40,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:38:41,020 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 13:38:41,043 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 13:38:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 13:38:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 13:38:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 13:38:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_client_method [2022-03-19 13:38:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_client_method [2022-03-19 13:38:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 13:38:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2022-03-19 13:38:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-03-19 13:38:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-03-19 13:38:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-19 13:38:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 13:38:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 13:38:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 13:38:41,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_client_method [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_client_method [2022-03-19 13:38:41,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 13:38:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-19 13:38:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-19 13:38:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-19 13:38:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-19 13:38:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 13:38:41,176 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 13:38:41,177 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 13:38:42,556 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-19 13:38:42,872 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-03-19 13:38:42,872 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-03-19 13:38:42,891 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 13:38:42,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 13:38:42,897 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-19 13:38:42,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:38:42 BoogieIcfgContainer [2022-03-19 13:38:42,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 13:38:42,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 13:38:42,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 13:38:42,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 13:38:42,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 01:38:40" (1/3) ... [2022-03-19 13:38:42,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19106afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:38:42, skipping insertion in model container [2022-03-19 13:38:42,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 01:38:40" (2/3) ... [2022-03-19 13:38:42,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19106afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 01:38:42, skipping insertion in model container [2022-03-19 13:38:42,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 01:38:42" (3/3) ... [2022-03-19 13:38:42,907 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt.blast.01.i.cil-1.c [2022-03-19 13:38:42,910 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 13:38:42,911 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 13:38:42,949 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 13:38:42,956 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 13:38:42,956 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 13:38:42,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 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 13:38:42,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-19 13:38:42,986 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:38:42,987 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] [2022-03-19 13:38:42,987 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:38:42,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:38:42,991 INFO L85 PathProgramCache]: Analyzing trace with hash -959596949, now seen corresponding path program 1 times [2022-03-19 13:38:42,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:42,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1266844752] [2022-03-19 13:38:43,006 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:38:43,006 INFO L85 PathProgramCache]: Analyzing trace with hash -959596949, now seen corresponding path program 2 times [2022-03-19 13:38:43,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:38:43,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079063978] [2022-03-19 13:38:43,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:38:43,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:38:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:43,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:38:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 13:38:43,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:38:43,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079063978] [2022-03-19 13:38:43,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079063978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:43,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:43,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:43,525 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:38:43,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1266844752] [2022-03-19 13:38:43,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1266844752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:43,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:43,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:43,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889068726] [2022-03-19 13:38:43,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:38:43,529 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:38:43,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:43,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:38:43,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:38:43,554 INFO L87 Difference]: Start difference. First operand has 140 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 133 states have internal predecessors, (221), 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 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states 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 13:38:45,585 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 13:38:46,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:38:46,169 INFO L93 Difference]: Finished difference Result 375 states and 621 transitions. [2022-03-19 13:38:46,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:38:46,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 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 30 [2022-03-19 13:38:46,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:38:46,179 INFO L225 Difference]: With dead ends: 375 [2022-03-19 13:38:46,179 INFO L226 Difference]: Without dead ends: 214 [2022-03-19 13:38:46,181 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 13:38:46,183 INFO L912 BasicCegarLoop]: 139 mSDtfsCounter, 141 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-19 13:38:46,183 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 405 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-19 13:38:46,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2022-03-19 13:38:46,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 144. [2022-03-19 13:38:46,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 139 states have (on average 1.5467625899280575) internal successors, (215), 139 states have internal predecessors, (215), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:38:46,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 219 transitions. [2022-03-19 13:38:46,215 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 219 transitions. Word has length 30 [2022-03-19 13:38:46,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:38:46,215 INFO L478 AbstractCegarLoop]: Abstraction has 144 states and 219 transitions. [2022-03-19 13:38:46,216 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states 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 13:38:46,216 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 219 transitions. [2022-03-19 13:38:46,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-19 13:38:46,216 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:38:46,217 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] [2022-03-19 13:38:46,217 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 13:38:46,217 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:38:46,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:38:46,217 INFO L85 PathProgramCache]: Analyzing trace with hash 312847758, now seen corresponding path program 1 times [2022-03-19 13:38:46,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:46,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [849299609] [2022-03-19 13:38:46,218 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 13:38:46,218 INFO L85 PathProgramCache]: Analyzing trace with hash 312847758, now seen corresponding path program 2 times [2022-03-19 13:38:46,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:38:46,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82435171] [2022-03-19 13:38:46,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:38:46,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:38:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:46,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:38:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:46,386 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 13:38:46,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:38:46,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82435171] [2022-03-19 13:38:46,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82435171] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:46,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:46,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:46,392 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:38:46,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [849299609] [2022-03-19 13:38:46,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [849299609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:46,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:46,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:46,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618826839] [2022-03-19 13:38:46,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:38:46,393 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:38:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:46,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:38:46,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:38:46,394 INFO L87 Difference]: Start difference. First operand 144 states and 219 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 2 states 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 13:38:48,405 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 13:38:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:38:48,685 INFO L93 Difference]: Finished difference Result 279 states and 426 transitions. [2022-03-19 13:38:48,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:38:48,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 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 31 [2022-03-19 13:38:48,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:38:48,686 INFO L225 Difference]: With dead ends: 279 [2022-03-19 13:38:48,687 INFO L226 Difference]: Without dead ends: 148 [2022-03-19 13:38:48,687 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 13:38:48,688 INFO L912 BasicCegarLoop]: 167 mSDtfsCounter, 7 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:38:48,688 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 423 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 268 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:38:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-03-19 13:38:48,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2022-03-19 13:38:48,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 142 states have (on average 1.5352112676056338) internal successors, (218), 142 states have internal predecessors, (218), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:38:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 222 transitions. [2022-03-19 13:38:48,697 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 222 transitions. Word has length 31 [2022-03-19 13:38:48,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:38:48,697 INFO L478 AbstractCegarLoop]: Abstraction has 147 states and 222 transitions. [2022-03-19 13:38:48,697 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (3), 2 states 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 13:38:48,698 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 222 transitions. [2022-03-19 13:38:48,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-03-19 13:38:48,698 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:38:48,698 INFO L500 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:38:48,699 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-19 13:38:48,699 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:38:48,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:38:48,699 INFO L85 PathProgramCache]: Analyzing trace with hash 403410774, now seen corresponding path program 1 times [2022-03-19 13:38:48,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:48,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [644894019] [2022-03-19 13:38:48,700 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:38:48,700 INFO L85 PathProgramCache]: Analyzing trace with hash 403410774, now seen corresponding path program 2 times [2022-03-19 13:38:48,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:38:48,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988807250] [2022-03-19 13:38:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:38:48,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:38:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:48,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:38:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:48,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 13:38:48,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:38:48,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988807250] [2022-03-19 13:38:48,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988807250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:48,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:48,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:38:48,860 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:38:48,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [644894019] [2022-03-19 13:38:48,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [644894019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:48,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:48,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:38:48,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095827447] [2022-03-19 13:38:48,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:38:48,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:38:48,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:48,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:38:48,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:38:48,867 INFO L87 Difference]: Start difference. First operand 147 states and 222 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states 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 13:38:50,891 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 13:38:51,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:38:51,173 INFO L93 Difference]: Finished difference Result 405 states and 622 transitions. [2022-03-19 13:38:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:38:51,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 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 46 [2022-03-19 13:38:51,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:38:51,175 INFO L225 Difference]: With dead ends: 405 [2022-03-19 13:38:51,175 INFO L226 Difference]: Without dead ends: 274 [2022-03-19 13:38:51,176 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 13:38:51,177 INFO L912 BasicCegarLoop]: 168 mSDtfsCounter, 124 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-19 13:38:51,177 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 323 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-19 13:38:51,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-03-19 13:38:51,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2022-03-19 13:38:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 269 states have (on average 1.5241635687732342) internal successors, (410), 269 states have internal predecessors, (410), 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 13:38:51,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 414 transitions. [2022-03-19 13:38:51,192 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 414 transitions. Word has length 46 [2022-03-19 13:38:51,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:38:51,192 INFO L478 AbstractCegarLoop]: Abstraction has 274 states and 414 transitions. [2022-03-19 13:38:51,192 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (3), 2 states 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 13:38:51,192 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 414 transitions. [2022-03-19 13:38:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-03-19 13:38:51,194 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:38:51,194 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:38:51,194 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-19 13:38:51,194 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:38:51,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:38:51,194 INFO L85 PathProgramCache]: Analyzing trace with hash 742139183, now seen corresponding path program 1 times [2022-03-19 13:38:51,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:51,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [777485652] [2022-03-19 13:38:51,198 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:38:51,198 INFO L85 PathProgramCache]: Analyzing trace with hash 742139183, now seen corresponding path program 2 times [2022-03-19 13:38:51,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:38:51,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030376943] [2022-03-19 13:38:51,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:38:51,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:38:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:51,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:38:51,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 13:38:51,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:38:51,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030376943] [2022-03-19 13:38:51,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030376943] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:51,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:51,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:51,379 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:38:51,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [777485652] [2022-03-19 13:38:51,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [777485652] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:51,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:51,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:51,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510755760] [2022-03-19 13:38:51,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:38:51,379 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:38:51,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:51,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:38:51,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:38:51,383 INFO L87 Difference]: Start difference. First operand 274 states and 414 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states 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 13:38:53,397 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 13:38:53,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:38:53,766 INFO L93 Difference]: Finished difference Result 717 states and 1086 transitions. [2022-03-19 13:38:53,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:38:53,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 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 61 [2022-03-19 13:38:53,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:38:53,769 INFO L225 Difference]: With dead ends: 717 [2022-03-19 13:38:53,769 INFO L226 Difference]: Without dead ends: 459 [2022-03-19 13:38:53,770 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 13:38:53,770 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 107 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 46 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:38:53,770 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 284 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:38:53,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-03-19 13:38:53,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 324. [2022-03-19 13:38:53,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.561128526645768) internal successors, (498), 319 states have internal predecessors, (498), 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 13:38:53,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 502 transitions. [2022-03-19 13:38:53,789 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 502 transitions. Word has length 61 [2022-03-19 13:38:53,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:38:53,789 INFO L478 AbstractCegarLoop]: Abstraction has 324 states and 502 transitions. [2022-03-19 13:38:53,789 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (3), 2 states 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 13:38:53,789 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 502 transitions. [2022-03-19 13:38:53,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-19 13:38:53,804 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:38:53,804 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:38:53,804 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-19 13:38:53,804 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:38:53,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:38:53,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1516939404, now seen corresponding path program 1 times [2022-03-19 13:38:53,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:53,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [286934301] [2022-03-19 13:38:53,805 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:38:53,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1516939404, now seen corresponding path program 2 times [2022-03-19 13:38:53,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:38:53,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885694752] [2022-03-19 13:38:53,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:38:53,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:38:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:38:53,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:53,951 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 13:38:53,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:38:53,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885694752] [2022-03-19 13:38:53,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885694752] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:53,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:53,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:53,952 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:38:53,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [286934301] [2022-03-19 13:38:53,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [286934301] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:53,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:53,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:53,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304054021] [2022-03-19 13:38:53,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:38:53,956 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:38:53,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:53,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:38:53,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:38:53,957 INFO L87 Difference]: Start difference. First operand 324 states and 502 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states 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 13:38:55,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:38:56,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:38:56,403 INFO L93 Difference]: Finished difference Result 817 states and 1258 transitions. [2022-03-19 13:38:56,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:38:56,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 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 81 [2022-03-19 13:38:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:38:56,406 INFO L225 Difference]: With dead ends: 817 [2022-03-19 13:38:56,406 INFO L226 Difference]: Without dead ends: 509 [2022-03-19 13:38:56,407 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 13:38:56,408 INFO L912 BasicCegarLoop]: 99 mSDtfsCounter, 109 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:38:56,408 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 284 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:38:56,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2022-03-19 13:38:56,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 368. [2022-03-19 13:38:56,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 363 states have (on average 1.5757575757575757) internal successors, (572), 363 states have internal predecessors, (572), 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 13:38:56,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 576 transitions. [2022-03-19 13:38:56,434 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 576 transitions. Word has length 81 [2022-03-19 13:38:56,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:38:56,434 INFO L478 AbstractCegarLoop]: Abstraction has 368 states and 576 transitions. [2022-03-19 13:38:56,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 2 states 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 13:38:56,434 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 576 transitions. [2022-03-19 13:38:56,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-03-19 13:38:56,440 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:38:56,440 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:38:56,440 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-19 13:38:56,440 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:38:56,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:38:56,440 INFO L85 PathProgramCache]: Analyzing trace with hash -295498385, now seen corresponding path program 1 times [2022-03-19 13:38:56,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:56,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [388938063] [2022-03-19 13:38:56,441 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:38:56,441 INFO L85 PathProgramCache]: Analyzing trace with hash -295498385, now seen corresponding path program 2 times [2022-03-19 13:38:56,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:38:56,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410394332] [2022-03-19 13:38:56,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:38:56,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:38:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:56,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:38:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:56,584 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-19 13:38:56,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:38:56,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410394332] [2022-03-19 13:38:56,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410394332] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:56,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:56,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:56,585 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:38:56,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [388938063] [2022-03-19 13:38:56,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [388938063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:56,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:56,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:56,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632522610] [2022-03-19 13:38:56,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:38:56,586 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:38:56,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:56,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:38:56,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:38:56,587 INFO L87 Difference]: Start difference. First operand 368 states and 576 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:38:58,598 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 13:38:59,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:38:59,000 INFO L93 Difference]: Finished difference Result 855 states and 1320 transitions. [2022-03-19 13:38:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:38:59,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 82 [2022-03-19 13:38:59,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:38:59,002 INFO L225 Difference]: With dead ends: 855 [2022-03-19 13:38:59,003 INFO L226 Difference]: Without dead ends: 503 [2022-03-19 13:38:59,003 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 13:38:59,004 INFO L912 BasicCegarLoop]: 105 mSDtfsCounter, 108 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:38:59,004 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 296 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:38:59,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2022-03-19 13:38:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 368. [2022-03-19 13:38:59,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 363 states have (on average 1.5647382920110193) internal successors, (568), 363 states have internal predecessors, (568), 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 13:38:59,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 572 transitions. [2022-03-19 13:38:59,019 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 572 transitions. Word has length 82 [2022-03-19 13:38:59,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:38:59,019 INFO L478 AbstractCegarLoop]: Abstraction has 368 states and 572 transitions. [2022-03-19 13:38:59,019 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:38:59,020 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 572 transitions. [2022-03-19 13:38:59,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-03-19 13:38:59,020 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:38:59,020 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:38:59,021 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-19 13:38:59,021 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:38:59,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:38:59,021 INFO L85 PathProgramCache]: Analyzing trace with hash 431863133, now seen corresponding path program 1 times [2022-03-19 13:38:59,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:59,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1334680817] [2022-03-19 13:38:59,022 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:38:59,022 INFO L85 PathProgramCache]: Analyzing trace with hash 431863133, now seen corresponding path program 2 times [2022-03-19 13:38:59,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:38:59,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594208120] [2022-03-19 13:38:59,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:38:59,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:38:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:38:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:38:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-19 13:38:59,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:38:59,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594208120] [2022-03-19 13:38:59,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594208120] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:59,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:59,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:59,187 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:38:59,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1334680817] [2022-03-19 13:38:59,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1334680817] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:38:59,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:38:59,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:38:59,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986520483] [2022-03-19 13:38:59,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:38:59,188 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:38:59,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:38:59,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:38:59,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:38:59,189 INFO L87 Difference]: Start difference. First operand 368 states and 572 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:01,221 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 13:39:01,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:01,590 INFO L93 Difference]: Finished difference Result 581 states and 906 transitions. [2022-03-19 13:39:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:39:01,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 97 [2022-03-19 13:39:01,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:01,592 INFO L225 Difference]: With dead ends: 581 [2022-03-19 13:39:01,592 INFO L226 Difference]: Without dead ends: 403 [2022-03-19 13:39:01,593 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 13:39:01,593 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 31 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:01,593 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 490 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 361 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:39:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-03-19 13:39:01,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 386. [2022-03-19 13:39:01,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5695538057742782) internal successors, (598), 381 states have internal predecessors, (598), 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 13:39:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 602 transitions. [2022-03-19 13:39:01,609 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 602 transitions. Word has length 97 [2022-03-19 13:39:01,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:01,609 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 602 transitions. [2022-03-19 13:39:01,610 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 602 transitions. [2022-03-19 13:39:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-19 13:39:01,611 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:01,611 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:39:01,612 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-19 13:39:01,612 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:01,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:01,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1171691203, now seen corresponding path program 3 times [2022-03-19 13:39:01,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:01,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [295099822] [2022-03-19 13:39:17,643 WARN L232 SmtUtils]: Spent 13.52s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:39:25,221 WARN L232 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:39:25,965 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:39:25,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1171691203, now seen corresponding path program 4 times [2022-03-19 13:39:25,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:39:25,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169231708] [2022-03-19 13:39:25,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:39:25,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:39:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:39:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:26,116 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-19 13:39:26,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:39:26,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169231708] [2022-03-19 13:39:26,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169231708] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:26,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:26,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:26,116 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:39:26,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [295099822] [2022-03-19 13:39:26,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [295099822] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:26,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:26,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:26,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365551035] [2022-03-19 13:39:26,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:39:26,117 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:39:26,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:26,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:39:26,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:39:26,118 INFO L87 Difference]: Start difference. First operand 386 states and 602 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states 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 13:39:28,136 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 13:39:28,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:28,503 INFO L93 Difference]: Finished difference Result 598 states and 934 transitions. [2022-03-19 13:39:28,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:39:28,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 112 [2022-03-19 13:39:28,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:28,505 INFO L225 Difference]: With dead ends: 598 [2022-03-19 13:39:28,505 INFO L226 Difference]: Without dead ends: 402 [2022-03-19 13:39:28,505 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 13:39:28,506 INFO L912 BasicCegarLoop]: 200 mSDtfsCounter, 37 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:28,506 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 490 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 354 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:39:28,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-03-19 13:39:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 386. [2022-03-19 13:39:28,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5669291338582678) internal successors, (597), 381 states have internal predecessors, (597), 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 13:39:28,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 601 transitions. [2022-03-19 13:39:28,523 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 601 transitions. Word has length 112 [2022-03-19 13:39:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:28,523 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 601 transitions. [2022-03-19 13:39:28,523 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states 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 13:39:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 601 transitions. [2022-03-19 13:39:28,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-03-19 13:39:28,524 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:28,525 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:39:28,525 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-19 13:39:28,525 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:28,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:28,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1673263717, now seen corresponding path program 1 times [2022-03-19 13:39:28,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:28,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [129737343] [2022-03-19 13:39:47,762 WARN L232 SmtUtils]: Spent 11.15s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:39:55,041 WARN L232 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:39:55,794 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:39:55,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1673263717, now seen corresponding path program 2 times [2022-03-19 13:39:55,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:39:55,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855160445] [2022-03-19 13:39:55,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:39:55,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:39:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:55,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:39:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:39:55,973 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-19 13:39:55,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:39:55,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855160445] [2022-03-19 13:39:55,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855160445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:55,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:55,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:55,974 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:39:55,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [129737343] [2022-03-19 13:39:55,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [129737343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:39:55,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:39:55,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:39:55,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839821351] [2022-03-19 13:39:55,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:39:55,974 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:39:55,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:55,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:39:55,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:39:55,975 INFO L87 Difference]: Start difference. First operand 386 states and 601 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states 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 13:39:57,985 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 13:39:58,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:39:58,420 INFO L93 Difference]: Finished difference Result 891 states and 1370 transitions. [2022-03-19 13:39:58,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:39:58,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 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 112 [2022-03-19 13:39:58,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:39:58,423 INFO L225 Difference]: With dead ends: 891 [2022-03-19 13:39:58,423 INFO L226 Difference]: Without dead ends: 521 [2022-03-19 13:39:58,424 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 13:39:58,424 INFO L912 BasicCegarLoop]: 105 mSDtfsCounter, 118 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:39:58,424 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 296 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:39:58,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-19 13:39:58,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 386. [2022-03-19 13:39:58,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5485564304461943) internal successors, (590), 381 states have internal predecessors, (590), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:39:58,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 594 transitions. [2022-03-19 13:39:58,440 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 594 transitions. Word has length 112 [2022-03-19 13:39:58,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:39:58,440 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 594 transitions. [2022-03-19 13:39:58,441 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 1 states have call successors, (3), 2 states 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 13:39:58,441 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 594 transitions. [2022-03-19 13:39:58,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-19 13:39:58,442 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:39:58,442 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 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 13:39:58,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-19 13:39:58,442 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:39:58,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:39:58,442 INFO L85 PathProgramCache]: Analyzing trace with hash 232485930, now seen corresponding path program 1 times [2022-03-19 13:39:58,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:39:58,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [670976142] [2022-03-19 13:40:16,656 WARN L232 SmtUtils]: Spent 10.19s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:40:24,655 WARN L232 SmtUtils]: Spent 6.29s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:40:25,396 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:40:25,396 INFO L85 PathProgramCache]: Analyzing trace with hash 232485930, now seen corresponding path program 2 times [2022-03-19 13:40:25,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:40:25,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044958710] [2022-03-19 13:40:25,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:40:25,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:40:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:40:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:40:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:40:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-19 13:40:25,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:40:25,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044958710] [2022-03-19 13:40:25,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044958710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:40:25,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:40:25,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:40:25,545 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:40:25,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [670976142] [2022-03-19 13:40:25,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [670976142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:40:25,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:40:25,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:40:25,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27843414] [2022-03-19 13:40:25,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:40:25,546 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:40:25,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:40:25,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:40:25,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:40:25,547 INFO L87 Difference]: Start difference. First operand 386 states and 594 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:40:27,556 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 13:40:27,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:40:27,968 INFO L93 Difference]: Finished difference Result 891 states and 1356 transitions. [2022-03-19 13:40:27,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:40:27,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-19 13:40:27,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:40:27,971 INFO L225 Difference]: With dead ends: 891 [2022-03-19 13:40:27,971 INFO L226 Difference]: Without dead ends: 521 [2022-03-19 13:40:27,972 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 13:40:27,972 INFO L912 BasicCegarLoop]: 116 mSDtfsCounter, 116 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:40:27,973 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 318 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:40:27,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-19 13:40:27,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 386. [2022-03-19 13:40:27,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5301837270341208) internal successors, (583), 381 states have internal predecessors, (583), 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 13:40:27,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 587 transitions. [2022-03-19 13:40:27,989 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 587 transitions. Word has length 113 [2022-03-19 13:40:27,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:40:27,989 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 587 transitions. [2022-03-19 13:40:27,989 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:40:27,989 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 587 transitions. [2022-03-19 13:40:27,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-03-19 13:40:27,990 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:40:27,990 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 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 13:40:27,991 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-19 13:40:27,991 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:40:27,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:40:27,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1244585760, now seen corresponding path program 1 times [2022-03-19 13:40:27,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:40:27,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1358401305] [2022-03-19 13:40:50,340 WARN L232 SmtUtils]: Spent 14.52s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:40:57,838 WARN L232 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:40:58,570 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:40:58,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1244585760, now seen corresponding path program 2 times [2022-03-19 13:40:58,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:40:58,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187370497] [2022-03-19 13:40:58,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:40:58,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:40:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:40:58,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:40:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:40:58,695 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-19 13:40:58,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:40:58,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187370497] [2022-03-19 13:40:58,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187370497] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:40:58,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:40:58,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:40:58,695 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:40:58,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1358401305] [2022-03-19 13:40:58,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1358401305] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:40:58,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:40:58,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:40:58,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066638358] [2022-03-19 13:40:58,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:40:58,696 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:40:58,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:40:58,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:40:58,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:40:58,696 INFO L87 Difference]: Start difference. First operand 386 states and 587 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 13:41:00,711 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 13:41:01,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:01,115 INFO L93 Difference]: Finished difference Result 891 states and 1342 transitions. [2022-03-19 13:41:01,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:41:01,115 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 114 [2022-03-19 13:41:01,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:01,117 INFO L225 Difference]: With dead ends: 891 [2022-03-19 13:41:01,117 INFO L226 Difference]: Without dead ends: 521 [2022-03-19 13:41:01,118 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 13:41:01,118 INFO L912 BasicCegarLoop]: 105 mSDtfsCounter, 114 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:01,118 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 296 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:41:01,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-03-19 13:41:01,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 386. [2022-03-19 13:41:01,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5118110236220472) internal successors, (576), 381 states have internal predecessors, (576), 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 13:41:01,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 580 transitions. [2022-03-19 13:41:01,162 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 580 transitions. Word has length 114 [2022-03-19 13:41:01,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:01,163 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 580 transitions. [2022-03-19 13:41:01,163 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 13:41:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 580 transitions. [2022-03-19 13:41:01,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-19 13:41:01,165 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:01,165 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 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 13:41:01,166 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-19 13:41:01,166 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:01,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:01,166 INFO L85 PathProgramCache]: Analyzing trace with hash 448198853, now seen corresponding path program 1 times [2022-03-19 13:41:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:01,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2146396948] [2022-03-19 13:41:21,283 WARN L232 SmtUtils]: Spent 11.70s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:41:30,251 WARN L232 SmtUtils]: Spent 5.42s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:41:30,966 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:30,967 INFO L85 PathProgramCache]: Analyzing trace with hash 448198853, now seen corresponding path program 2 times [2022-03-19 13:41:30,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:30,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163409914] [2022-03-19 13:41:30,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:30,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-19 13:41:31,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:31,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163409914] [2022-03-19 13:41:31,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163409914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:31,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:31,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:31,083 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:31,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2146396948] [2022-03-19 13:41:31,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2146396948] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:31,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:31,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:31,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610027385] [2022-03-19 13:41:31,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:31,083 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:41:31,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:31,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:41:31,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:41:31,084 INFO L87 Difference]: Start difference. First operand 386 states and 580 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:33,092 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 13:41:33,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:33,399 INFO L93 Difference]: Finished difference Result 589 states and 888 transitions. [2022-03-19 13:41:33,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:41:33,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-03-19 13:41:33,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:33,400 INFO L225 Difference]: With dead ends: 589 [2022-03-19 13:41:33,400 INFO L226 Difference]: Without dead ends: 393 [2022-03-19 13:41:33,401 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 13:41:33,401 INFO L912 BasicCegarLoop]: 190 mSDtfsCounter, 22 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:33,401 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 470 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 328 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:41:33,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-03-19 13:41:33,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 386. [2022-03-19 13:41:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 381 states have (on average 1.5091863517060367) internal successors, (575), 381 states have internal predecessors, (575), 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 13:41:33,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 579 transitions. [2022-03-19 13:41:33,415 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 579 transitions. Word has length 115 [2022-03-19 13:41:33,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:33,416 INFO L478 AbstractCegarLoop]: Abstraction has 386 states and 579 transitions. [2022-03-19 13:41:33,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:33,416 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 579 transitions. [2022-03-19 13:41:33,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-19 13:41:33,417 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:33,417 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:41:33,417 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-19 13:41:33,417 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:33,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1965336058, now seen corresponding path program 1 times [2022-03-19 13:41:33,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:33,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [10356380] [2022-03-19 13:41:33,419 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:33,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1965336058, now seen corresponding path program 2 times [2022-03-19 13:41:33,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:33,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637234359] [2022-03-19 13:41:33,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:33,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:33,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:33,576 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-03-19 13:41:33,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:33,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637234359] [2022-03-19 13:41:33,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637234359] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:33,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:33,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:33,576 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:33,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [10356380] [2022-03-19 13:41:33,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [10356380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:33,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:33,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:33,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708103184] [2022-03-19 13:41:33,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:33,577 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:41:33,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:33,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:41:33,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:41:33,577 INFO L87 Difference]: Start difference. First operand 386 states and 579 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 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 13:41:35,586 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 13:41:35,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:35,981 INFO L93 Difference]: Finished difference Result 775 states and 1171 transitions. [2022-03-19 13:41:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:41:35,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 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 115 [2022-03-19 13:41:35,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:35,984 INFO L225 Difference]: With dead ends: 775 [2022-03-19 13:41:35,984 INFO L226 Difference]: Without dead ends: 579 [2022-03-19 13:41:35,984 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 13:41:35,985 INFO L912 BasicCegarLoop]: 319 mSDtfsCounter, 109 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:35,985 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 483 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:41:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-03-19 13:41:36,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2022-03-19 13:41:36,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 574 states have (on average 1.505226480836237) internal successors, (864), 574 states have internal predecessors, (864), 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 13:41:36,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 868 transitions. [2022-03-19 13:41:36,006 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 868 transitions. Word has length 115 [2022-03-19 13:41:36,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:36,007 INFO L478 AbstractCegarLoop]: Abstraction has 579 states and 868 transitions. [2022-03-19 13:41:36,007 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 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 13:41:36,007 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 868 transitions. [2022-03-19 13:41:36,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-19 13:41:36,008 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:36,008 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:41:36,008 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-19 13:41:36,008 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:36,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:36,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1912234632, now seen corresponding path program 1 times [2022-03-19 13:41:36,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:36,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1782246681] [2022-03-19 13:41:36,009 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:36,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1912234632, now seen corresponding path program 2 times [2022-03-19 13:41:36,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:36,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338218466] [2022-03-19 13:41:36,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:36,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:36,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-19 13:41:36,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:36,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338218466] [2022-03-19 13:41:36,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338218466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:36,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:36,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:36,123 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:36,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1782246681] [2022-03-19 13:41:36,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1782246681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:36,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:36,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:36,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833086121] [2022-03-19 13:41:36,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:36,123 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:41:36,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:36,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:41:36,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:41:36,124 INFO L87 Difference]: Start difference. First operand 579 states and 868 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:38,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-19 13:41:38,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:38,368 INFO L93 Difference]: Finished difference Result 992 states and 1488 transitions. [2022-03-19 13:41:38,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:41:38,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 115 [2022-03-19 13:41:38,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:38,370 INFO L225 Difference]: With dead ends: 992 [2022-03-19 13:41:38,370 INFO L226 Difference]: Without dead ends: 603 [2022-03-19 13:41:38,371 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 13:41:38,371 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 15 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:38,371 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 363 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 215 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-03-19 13:41:38,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-03-19 13:41:38,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2022-03-19 13:41:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 598 states have (on average 1.4983277591973243) internal successors, (896), 598 states have internal predecessors, (896), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 900 transitions. [2022-03-19 13:41:38,391 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 900 transitions. Word has length 115 [2022-03-19 13:41:38,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:38,391 INFO L478 AbstractCegarLoop]: Abstraction has 603 states and 900 transitions. [2022-03-19 13:41:38,391 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:38,391 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 900 transitions. [2022-03-19 13:41:38,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-19 13:41:38,425 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:38,425 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:41:38,425 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-19 13:41:38,425 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:38,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1619812542, now seen corresponding path program 1 times [2022-03-19 13:41:38,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:38,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [81982213] [2022-03-19 13:41:38,426 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:38,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1619812542, now seen corresponding path program 2 times [2022-03-19 13:41:38,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:38,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017270776] [2022-03-19 13:41:38,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:38,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-03-19 13:41:38,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:38,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017270776] [2022-03-19 13:41:38,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017270776] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:38,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:38,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:38,534 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:38,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [81982213] [2022-03-19 13:41:38,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [81982213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:38,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:38,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:38,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123099528] [2022-03-19 13:41:38,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:38,534 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:41:38,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:38,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:41:38,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:41:38,535 INFO L87 Difference]: Start difference. First operand 603 states and 900 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 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 13:41:40,547 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 13:41:40,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:40,937 INFO L93 Difference]: Finished difference Result 1207 states and 1810 transitions. [2022-03-19 13:41:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:41:40,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 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 119 [2022-03-19 13:41:40,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:40,940 INFO L225 Difference]: With dead ends: 1207 [2022-03-19 13:41:40,940 INFO L226 Difference]: Without dead ends: 794 [2022-03-19 13:41:40,941 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 13:41:40,941 INFO L912 BasicCegarLoop]: 317 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:40,942 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 481 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:41:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2022-03-19 13:41:40,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2022-03-19 13:41:40,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.4980988593155893) internal successors, (1182), 789 states have internal predecessors, (1182), 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 13:41:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1186 transitions. [2022-03-19 13:41:40,969 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1186 transitions. Word has length 119 [2022-03-19 13:41:40,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:40,969 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1186 transitions. [2022-03-19 13:41:40,969 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 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 13:41:40,970 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1186 transitions. [2022-03-19 13:41:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-03-19 13:41:40,971 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:40,971 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:41:40,971 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-19 13:41:40,971 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:40,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:40,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1760361152, now seen corresponding path program 1 times [2022-03-19 13:41:40,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:40,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [404683316] [2022-03-19 13:41:40,973 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:40,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1760361152, now seen corresponding path program 2 times [2022-03-19 13:41:40,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:40,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144821849] [2022-03-19 13:41:40,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:40,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:41,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:41,104 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-19 13:41:41,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:41,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144821849] [2022-03-19 13:41:41,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144821849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:41,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:41,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:41,105 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:41,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [404683316] [2022-03-19 13:41:41,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [404683316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:41,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:41,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-19 13:41:41,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243362065] [2022-03-19 13:41:41,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:41,106 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-19 13:41:41,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:41,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-19 13:41:41,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-19 13:41:41,107 INFO L87 Difference]: Start difference. First operand 794 states and 1186 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:43,123 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 13:41:43,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:43,489 INFO L93 Difference]: Finished difference Result 1566 states and 2346 transitions. [2022-03-19 13:41:43,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-19 13:41:43,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2022-03-19 13:41:43,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:43,492 INFO L225 Difference]: With dead ends: 1566 [2022-03-19 13:41:43,492 INFO L226 Difference]: Without dead ends: 962 [2022-03-19 13:41:43,497 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 13:41:43,497 INFO L912 BasicCegarLoop]: 318 mSDtfsCounter, 130 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:43,498 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 482 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:41:43,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2022-03-19 13:41:43,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2022-03-19 13:41:43,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.4963427377220482) internal successors, (1432), 957 states have internal predecessors, (1432), 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 13:41:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1436 transitions. [2022-03-19 13:41:43,529 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1436 transitions. Word has length 119 [2022-03-19 13:41:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:43,530 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1436 transitions. [2022-03-19 13:41:43,530 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:41:43,530 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1436 transitions. [2022-03-19 13:41:43,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-19 13:41:43,532 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:43,532 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:41:43,532 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-19 13:41:43,532 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:43,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:43,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1017598080, now seen corresponding path program 1 times [2022-03-19 13:41:43,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:43,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1118807337] [2022-03-19 13:41:43,533 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:41:43,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1017598080, now seen corresponding path program 2 times [2022-03-19 13:41:43,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:41:43,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304731643] [2022-03-19 13:41:43,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:41:43,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:41:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:43,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:41:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:41:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-03-19 13:41:43,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:41:43,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304731643] [2022-03-19 13:41:43,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304731643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:43,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:43,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:43,668 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:41:43,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1118807337] [2022-03-19 13:41:43,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1118807337] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:41:43,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:41:43,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:41:43,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988575665] [2022-03-19 13:41:43,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:41:43,669 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:41:43,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:43,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:41:43,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:41:43,669 INFO L87 Difference]: Start difference. First operand 962 states and 1436 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states 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 13:41:45,677 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 13:41:46,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:41:46,077 INFO L93 Difference]: Finished difference Result 2011 states and 2974 transitions. [2022-03-19 13:41:46,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:41:46,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 182 [2022-03-19 13:41:46,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:41:46,080 INFO L225 Difference]: With dead ends: 2011 [2022-03-19 13:41:46,080 INFO L226 Difference]: Without dead ends: 1065 [2022-03-19 13:41:46,082 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 13:41:46,082 INFO L912 BasicCegarLoop]: 212 mSDtfsCounter, 41 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:41:46,082 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 515 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 403 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:41:46,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-03-19 13:41:46,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 962. [2022-03-19 13:41:46,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.4921630094043887) internal successors, (1428), 957 states have internal predecessors, (1428), 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 13:41:46,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1432 transitions. [2022-03-19 13:41:46,112 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1432 transitions. Word has length 182 [2022-03-19 13:41:46,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:41:46,112 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1432 transitions. [2022-03-19 13:41:46,112 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states 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 13:41:46,112 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1432 transitions. [2022-03-19 13:41:46,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-19 13:41:46,114 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:41:46,114 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:41:46,114 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-19 13:41:46,114 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:41:46,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:41:46,115 INFO L85 PathProgramCache]: Analyzing trace with hash -874581490, now seen corresponding path program 3 times [2022-03-19 13:41:46,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:41:46,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [207106906] [2022-03-19 13:41:59,012 WARN L232 SmtUtils]: Spent 10.25s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:42:06,174 WARN L232 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:42:07,977 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:42:07,978 INFO L85 PathProgramCache]: Analyzing trace with hash -874581490, now seen corresponding path program 4 times [2022-03-19 13:42:07,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:42:07,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55491819] [2022-03-19 13:42:07,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:42:07,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:42:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:08,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:42:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:08,151 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-03-19 13:42:08,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:42:08,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55491819] [2022-03-19 13:42:08,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55491819] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:08,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:08,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:08,152 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:42:08,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [207106906] [2022-03-19 13:42:08,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [207106906] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:08,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:08,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:08,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314855697] [2022-03-19 13:42:08,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:42:08,152 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:42:08,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:08,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:42:08,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:42:08,153 INFO L87 Difference]: Start difference. First operand 962 states and 1432 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:10,164 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 13:42:10,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:42:10,556 INFO L93 Difference]: Finished difference Result 2368 states and 3493 transitions. [2022-03-19 13:42:10,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:42:10,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 197 [2022-03-19 13:42:10,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:42:10,560 INFO L225 Difference]: With dead ends: 2368 [2022-03-19 13:42:10,560 INFO L226 Difference]: Without dead ends: 1422 [2022-03-19 13:42:10,561 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 13:42:10,562 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 108 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:42:10,562 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:42:10,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2022-03-19 13:42:10,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1067. [2022-03-19 13:42:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4868173258003767) internal successors, (1579), 1062 states have internal predecessors, (1579), 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 13:42:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1583 transitions. [2022-03-19 13:42:10,603 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1583 transitions. Word has length 197 [2022-03-19 13:42:10,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:42:10,603 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1583 transitions. [2022-03-19 13:42:10,603 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:42:10,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1583 transitions. [2022-03-19 13:42:10,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-03-19 13:42:10,605 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:42:10,605 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:42:10,605 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-19 13:42:10,605 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:42:10,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:42:10,606 INFO L85 PathProgramCache]: Analyzing trace with hash -448026992, now seen corresponding path program 1 times [2022-03-19 13:42:10,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:10,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [103057195] [2022-03-19 13:42:22,336 WARN L232 SmtUtils]: Spent 9.24s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:42:30,806 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:42:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash -448026992, now seen corresponding path program 2 times [2022-03-19 13:42:30,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:42:30,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561759611] [2022-03-19 13:42:30,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:42:30,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:42:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:30,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:42:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:30,953 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-19 13:42:30,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:42:30,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561759611] [2022-03-19 13:42:30,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561759611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:30,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:30,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:30,953 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:42:30,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [103057195] [2022-03-19 13:42:30,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [103057195] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:30,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:30,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589836056] [2022-03-19 13:42:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:42:30,954 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:42:30,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:30,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:42:30,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:42:30,955 INFO L87 Difference]: Start difference. First operand 1067 states and 1583 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 13:42:32,964 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 13:42:33,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:42:33,386 INFO L93 Difference]: Finished difference Result 2443 states and 3595 transitions. [2022-03-19 13:42:33,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:42:33,387 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 197 [2022-03-19 13:42:33,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:42:33,390 INFO L225 Difference]: With dead ends: 2443 [2022-03-19 13:42:33,390 INFO L226 Difference]: Without dead ends: 1392 [2022-03-19 13:42:33,391 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 13:42:33,391 INFO L912 BasicCegarLoop]: 112 mSDtfsCounter, 108 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:42:33,391 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 314 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 387 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:42:33,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2022-03-19 13:42:33,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1067. [2022-03-19 13:42:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4689265536723164) internal successors, (1560), 1062 states have internal predecessors, (1560), 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 13:42:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1564 transitions. [2022-03-19 13:42:33,451 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1564 transitions. Word has length 197 [2022-03-19 13:42:33,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:42:33,451 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1564 transitions. [2022-03-19 13:42:33,451 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 13:42:33,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1564 transitions. [2022-03-19 13:42:33,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-19 13:42:33,453 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:42:33,453 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:42:33,453 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-19 13:42:33,453 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:42:33,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:42:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash 356385574, now seen corresponding path program 1 times [2022-03-19 13:42:33,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:33,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1225981415] [2022-03-19 13:42:48,793 WARN L232 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:42:55,895 WARN L232 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:42:58,084 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:42:58,084 INFO L85 PathProgramCache]: Analyzing trace with hash 356385574, now seen corresponding path program 2 times [2022-03-19 13:42:58,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:42:58,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405316826] [2022-03-19 13:42:58,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:42:58,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:42:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:58,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:42:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:42:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-19 13:42:58,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:42:58,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405316826] [2022-03-19 13:42:58,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405316826] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:58,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:58,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:58,244 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:42:58,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1225981415] [2022-03-19 13:42:58,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1225981415] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:42:58,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:42:58,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:42:58,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541987817] [2022-03-19 13:42:58,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:42:58,244 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:42:58,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:42:58,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:42:58,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:42:58,245 INFO L87 Difference]: Start difference. First operand 1067 states and 1564 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:43:00,255 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 13:43:00,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:43:00,592 INFO L93 Difference]: Finished difference Result 2181 states and 3182 transitions. [2022-03-19 13:43:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:43:00,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-03-19 13:43:00,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:43:00,595 INFO L225 Difference]: With dead ends: 2181 [2022-03-19 13:43:00,595 INFO L226 Difference]: Without dead ends: 1130 [2022-03-19 13:43:00,597 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 13:43:00,597 INFO L912 BasicCegarLoop]: 204 mSDtfsCounter, 40 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:43:00,597 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 499 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 372 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:43:00,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2022-03-19 13:43:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1067. [2022-03-19 13:43:00,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1067 states, 1062 states have (on average 1.4651600753295668) internal successors, (1556), 1062 states have internal predecessors, (1556), 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 13:43:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1067 states to 1067 states and 1560 transitions. [2022-03-19 13:43:00,641 INFO L78 Accepts]: Start accepts. Automaton has 1067 states and 1560 transitions. Word has length 200 [2022-03-19 13:43:00,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:43:00,641 INFO L478 AbstractCegarLoop]: Abstraction has 1067 states and 1560 transitions. [2022-03-19 13:43:00,641 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:43:00,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1067 states and 1560 transitions. [2022-03-19 13:43:00,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-19 13:43:00,643 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:43:00,644 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:43:00,644 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-19 13:43:00,644 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:43:00,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:43:00,644 INFO L85 PathProgramCache]: Analyzing trace with hash -144707799, now seen corresponding path program 1 times [2022-03-19 13:43:00,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:43:00,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1128937494] [2022-03-19 13:43:17,617 WARN L232 SmtUtils]: Spent 14.52s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:43:25,371 WARN L232 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:43:33,466 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:43:33,466 INFO L85 PathProgramCache]: Analyzing trace with hash -144707799, now seen corresponding path program 2 times [2022-03-19 13:43:33,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:43:33,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082594809] [2022-03-19 13:43:33,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:43:33,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:43:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:33,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:43:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:43:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 301 proven. 1 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-03-19 13:43:33,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:43:33,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082594809] [2022-03-19 13:43:33,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082594809] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 13:43:33,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356563751] [2022-03-19 13:43:33,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 13:43:33,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 13:43:33,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:43:33,656 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 13:43:33,657 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 13:44:01,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 13:44:01,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 13:44:01,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 23 conjunts are in the unsatisfiable core [2022-03-19 13:44:01,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 13:44:01,765 INFO L356 Elim1Store]: treesize reduction 54, result has 44.3 percent of original size [2022-03-19 13:44:01,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 143 [2022-03-19 13:44:01,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 63 [2022-03-19 13:44:01,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-19 13:44:01,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-03-19 13:44:01,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-19 13:44:02,009 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-03-19 13:44:02,018 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-03-19 13:44:02,044 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-03-19 13:44:02,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2022-03-19 13:44:02,119 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-03-19 13:44:02,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-03-19 13:44:02,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-19 13:44:02,270 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 267 proven. 40 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-03-19 13:44:02,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 13:44:02,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 4 [2022-03-19 13:44:02,553 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 273 proven. 15 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-03-19 13:44:02,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356563751] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 13:44:02,553 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 13:44:02,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 7] total 14 [2022-03-19 13:44:02,554 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:44:02,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1128937494] [2022-03-19 13:44:02,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1128937494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:44:02,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:44:02,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-19 13:44:02,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453245592] [2022-03-19 13:44:02,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:44:02,555 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-19 13:44:02,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:44:02,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-19 13:44:02,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-03-19 13:44:02,555 INFO L87 Difference]: Start difference. First operand 1067 states and 1560 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:44:04,566 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 13:44:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:44:05,299 INFO L93 Difference]: Finished difference Result 3029 states and 4435 transitions. [2022-03-19 13:44:05,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-19 13:44:05,300 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-03-19 13:44:05,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:44:05,305 INFO L225 Difference]: With dead ends: 3029 [2022-03-19 13:44:05,305 INFO L226 Difference]: Without dead ends: 1978 [2022-03-19 13:44:05,307 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-03-19 13:44:05,308 INFO L912 BasicCegarLoop]: 247 mSDtfsCounter, 92 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-19 13:44:05,308 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 756 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 710 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-03-19 13:44:05,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2022-03-19 13:44:05,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1901. [2022-03-19 13:44:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.47415611814346) internal successors, (2795), 1896 states have internal predecessors, (2795), 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 13:44:05,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2799 transitions. [2022-03-19 13:44:05,395 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2799 transitions. Word has length 200 [2022-03-19 13:44:05,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:44:05,395 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2799 transitions. [2022-03-19 13:44:05,395 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 5 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:44:05,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2799 transitions. [2022-03-19 13:44:05,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-03-19 13:44:05,398 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:44:05,398 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:44:05,436 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-19 13:44:05,611 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-03-19 13:44:05,612 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:44:05,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:44:05,612 INFO L85 PathProgramCache]: Analyzing trace with hash -730984021, now seen corresponding path program 1 times [2022-03-19 13:44:05,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:44:05,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [413887485] [2022-03-19 13:44:22,618 WARN L232 SmtUtils]: Spent 14.69s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:44:37,442 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:44:37,442 INFO L85 PathProgramCache]: Analyzing trace with hash -730984021, now seen corresponding path program 2 times [2022-03-19 13:44:37,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:44:37,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37249482] [2022-03-19 13:44:37,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:44:37,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:44:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:44:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:44:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:44:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-19 13:44:37,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:44:37,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37249482] [2022-03-19 13:44:37,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37249482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:44:37,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:44:37,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:44:37,618 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:44:37,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [413887485] [2022-03-19 13:44:37,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [413887485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:44:37,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:44:37,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:44:37,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577723903] [2022-03-19 13:44:37,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:44:37,618 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:44:37,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:44:37,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:44:37,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:44:37,619 INFO L87 Difference]: Start difference. First operand 1901 states and 2799 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:44:39,630 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 13:44:40,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:44:40,103 INFO L93 Difference]: Finished difference Result 4370 states and 6396 transitions. [2022-03-19 13:44:40,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:44:40,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 200 [2022-03-19 13:44:40,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:44:40,113 INFO L225 Difference]: With dead ends: 4370 [2022-03-19 13:44:40,113 INFO L226 Difference]: Without dead ends: 2485 [2022-03-19 13:44:40,116 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 13:44:40,116 INFO L912 BasicCegarLoop]: 107 mSDtfsCounter, 107 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:44:40,116 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 302 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 393 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:44:40,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2022-03-19 13:44:40,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 1901. [2022-03-19 13:44:40,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.4567510548523206) internal successors, (2762), 1896 states have internal predecessors, (2762), 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 13:44:40,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2766 transitions. [2022-03-19 13:44:40,227 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2766 transitions. Word has length 200 [2022-03-19 13:44:40,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:44:40,227 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2766 transitions. [2022-03-19 13:44:40,227 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:44:40,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2766 transitions. [2022-03-19 13:44:40,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-19 13:44:40,231 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:44:40,231 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:44:40,231 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-19 13:44:40,231 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:44:40,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:44:40,231 INFO L85 PathProgramCache]: Analyzing trace with hash -234182702, now seen corresponding path program 1 times [2022-03-19 13:44:40,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:44:40,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [953909475] [2022-03-19 13:44:54,220 WARN L232 SmtUtils]: Spent 11.30s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:45:00,879 WARN L232 SmtUtils]: Spent 5.03s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:45:09,590 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:45:09,591 INFO L85 PathProgramCache]: Analyzing trace with hash -234182702, now seen corresponding path program 2 times [2022-03-19 13:45:09,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:45:09,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399205249] [2022-03-19 13:45:09,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:45:09,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:45:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:45:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:45:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:45:09,715 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-19 13:45:09,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:45:09,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399205249] [2022-03-19 13:45:09,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399205249] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:45:09,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:45:09,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:45:09,716 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:45:09,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [953909475] [2022-03-19 13:45:09,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [953909475] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:45:09,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:45:09,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:45:09,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256016985] [2022-03-19 13:45:09,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:45:09,716 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:45:09,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:45:09,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:45:09,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:45:09,717 INFO L87 Difference]: Start difference. First operand 1901 states and 2766 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states 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 13:45:11,727 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 13:45:12,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:45:12,112 INFO L93 Difference]: Finished difference Result 3878 states and 5617 transitions. [2022-03-19 13:45:12,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:45:12,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 201 [2022-03-19 13:45:12,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:45:12,117 INFO L225 Difference]: With dead ends: 3878 [2022-03-19 13:45:12,117 INFO L226 Difference]: Without dead ends: 1993 [2022-03-19 13:45:12,120 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 13:45:12,120 INFO L912 BasicCegarLoop]: 199 mSDtfsCounter, 30 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:45:12,120 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 489 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 356 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:45:12,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2022-03-19 13:45:12,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1901. [2022-03-19 13:45:12,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.4525316455696202) internal successors, (2754), 1896 states have internal predecessors, (2754), 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 13:45:12,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2758 transitions. [2022-03-19 13:45:12,212 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2758 transitions. Word has length 201 [2022-03-19 13:45:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:45:12,213 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2758 transitions. [2022-03-19 13:45:12,213 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states 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 13:45:12,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2758 transitions. [2022-03-19 13:45:12,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-03-19 13:45:12,216 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:45:12,216 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:45:12,216 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-19 13:45:12,216 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:45:12,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:45:12,217 INFO L85 PathProgramCache]: Analyzing trace with hash 232338556, now seen corresponding path program 1 times [2022-03-19 13:45:12,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:45:12,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2031963041] [2022-03-19 13:45:23,655 WARN L232 SmtUtils]: Spent 9.03s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:45:38,624 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:45:38,624 INFO L85 PathProgramCache]: Analyzing trace with hash 232338556, now seen corresponding path program 2 times [2022-03-19 13:45:38,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:45:38,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856709070] [2022-03-19 13:45:38,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:45:38,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:45:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:45:38,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:45:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:45:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-03-19 13:45:38,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:45:38,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856709070] [2022-03-19 13:45:38,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856709070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:45:38,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:45:38,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:45:38,767 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:45:38,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2031963041] [2022-03-19 13:45:38,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2031963041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:45:38,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:45:38,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:45:38,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639935992] [2022-03-19 13:45:38,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:45:38,768 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:45:38,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:45:38,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:45:38,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:45:38,769 INFO L87 Difference]: Start difference. First operand 1901 states and 2758 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states 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 13:45:40,789 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 13:45:41,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:45:41,166 INFO L93 Difference]: Finished difference Result 3836 states and 5549 transitions. [2022-03-19 13:45:41,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:45:41,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 201 [2022-03-19 13:45:41,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:45:41,172 INFO L225 Difference]: With dead ends: 3836 [2022-03-19 13:45:41,172 INFO L226 Difference]: Without dead ends: 1951 [2022-03-19 13:45:41,174 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 13:45:41,175 INFO L912 BasicCegarLoop]: 193 mSDtfsCounter, 21 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:45:41,175 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 477 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 343 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:45:41,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2022-03-19 13:45:41,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1901. [2022-03-19 13:45:41,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1896 states have (on average 1.4483122362869199) internal successors, (2746), 1896 states have internal predecessors, (2746), 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 13:45:41,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2750 transitions. [2022-03-19 13:45:41,279 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2750 transitions. Word has length 201 [2022-03-19 13:45:41,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:45:41,279 INFO L478 AbstractCegarLoop]: Abstraction has 1901 states and 2750 transitions. [2022-03-19 13:45:41,279 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states 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 13:45:41,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2750 transitions. [2022-03-19 13:45:41,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-19 13:45:41,282 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:45:41,282 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:45:41,282 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-19 13:45:41,282 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:45:41,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:45:41,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1003216029, now seen corresponding path program 1 times [2022-03-19 13:45:41,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:45:41,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1391970799] [2022-03-19 13:45:41,283 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:45:41,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1003216029, now seen corresponding path program 2 times [2022-03-19 13:45:41,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:45:41,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348647184] [2022-03-19 13:45:41,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:45:41,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:45:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:45:41,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:45:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:45:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-19 13:45:41,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:45:41,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348647184] [2022-03-19 13:45:41,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348647184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:45:41,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:45:41,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:45:41,434 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:45:41,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1391970799] [2022-03-19 13:45:41,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1391970799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:45:41,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:45:41,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:45:41,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255129661] [2022-03-19 13:45:41,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:45:41,434 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:45:41,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:45:41,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:45:41,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:45:41,435 INFO L87 Difference]: Start difference. First operand 1901 states and 2750 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states 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 13:45:43,444 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 13:45:43,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:45:43,901 INFO L93 Difference]: Finished difference Result 4196 states and 6030 transitions. [2022-03-19 13:45:43,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:45:43,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 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 204 [2022-03-19 13:45:43,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:45:43,907 INFO L225 Difference]: With dead ends: 4196 [2022-03-19 13:45:43,907 INFO L226 Difference]: Without dead ends: 2311 [2022-03-19 13:45:43,909 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 13:45:43,909 INFO L912 BasicCegarLoop]: 210 mSDtfsCounter, 41 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:45:43,910 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 512 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 422 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:45:43,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2311 states. [2022-03-19 13:45:44,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2311 to 2133. [2022-03-19 13:45:44,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 2128 states have (on average 1.4445488721804511) internal successors, (3074), 2128 states have internal predecessors, (3074), 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 13:45:44,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 3078 transitions. [2022-03-19 13:45:44,010 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 3078 transitions. Word has length 204 [2022-03-19 13:45:44,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:45:44,010 INFO L478 AbstractCegarLoop]: Abstraction has 2133 states and 3078 transitions. [2022-03-19 13:45:44,010 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states 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 13:45:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 3078 transitions. [2022-03-19 13:45:44,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-03-19 13:45:44,013 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:45:44,013 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:45:44,013 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-19 13:45:44,013 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:45:44,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:45:44,014 INFO L85 PathProgramCache]: Analyzing trace with hash 958358629, now seen corresponding path program 1 times [2022-03-19 13:45:44,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:45:44,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1517459665] [2022-03-19 13:45:44,014 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:45:44,014 INFO L85 PathProgramCache]: Analyzing trace with hash 958358629, now seen corresponding path program 2 times [2022-03-19 13:45:44,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:45:44,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328874602] [2022-03-19 13:45:44,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:45:44,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:45:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:45:44,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:45:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:45:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-03-19 13:45:44,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:45:44,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328874602] [2022-03-19 13:45:44,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328874602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:45:44,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:45:44,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:45:44,185 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:45:44,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1517459665] [2022-03-19 13:45:44,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1517459665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:45:44,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:45:44,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:45:44,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163599514] [2022-03-19 13:45:44,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:45:44,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:45:44,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:45:44,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:45:44,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:45:44,187 INFO L87 Difference]: Start difference. First operand 2133 states and 3078 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states 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 13:45:46,195 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 13:45:46,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:45:46,691 INFO L93 Difference]: Finished difference Result 4819 states and 6926 transitions. [2022-03-19 13:45:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:45:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 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 204 [2022-03-19 13:45:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:45:46,698 INFO L225 Difference]: With dead ends: 4819 [2022-03-19 13:45:46,698 INFO L226 Difference]: Without dead ends: 2702 [2022-03-19 13:45:46,701 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 13:45:46,701 INFO L912 BasicCegarLoop]: 216 mSDtfsCounter, 47 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:45:46,701 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 524 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:45:46,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2022-03-19 13:45:46,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2453. [2022-03-19 13:45:46,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.451797385620915) internal successors, (3554), 2448 states have internal predecessors, (3554), 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 13:45:46,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3558 transitions. [2022-03-19 13:45:46,823 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3558 transitions. Word has length 204 [2022-03-19 13:45:46,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:45:46,823 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3558 transitions. [2022-03-19 13:45:46,823 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states 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 13:45:46,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3558 transitions. [2022-03-19 13:45:46,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-19 13:45:46,826 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:45:46,826 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:45:46,826 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-19 13:45:46,827 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:45:46,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:45:46,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1208886526, now seen corresponding path program 1 times [2022-03-19 13:45:46,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:45:46,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2088883536] [2022-03-19 13:45:59,527 WARN L232 SmtUtils]: Spent 12.39s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:46:08,146 WARN L232 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:46:14,652 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:46:14,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1208886526, now seen corresponding path program 2 times [2022-03-19 13:46:14,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:46:14,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266222485] [2022-03-19 13:46:14,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:46:14,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:46:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:46:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:46:14,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:46:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-03-19 13:46:14,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:46:14,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266222485] [2022-03-19 13:46:14,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266222485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:46:14,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:46:14,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:46:14,800 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:46:14,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2088883536] [2022-03-19 13:46:14,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2088883536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:46:14,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:46:14,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:46:14,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590061427] [2022-03-19 13:46:14,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:46:14,800 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:46:14,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:46:14,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:46:14,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:46:14,801 INFO L87 Difference]: Start difference. First operand 2453 states and 3558 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 13:46:16,808 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 13:46:17,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:46:17,283 INFO L93 Difference]: Finished difference Result 5030 states and 7262 transitions. [2022-03-19 13:46:17,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:46:17,283 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 207 [2022-03-19 13:46:17,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:46:17,291 INFO L225 Difference]: With dead ends: 5030 [2022-03-19 13:46:17,291 INFO L226 Difference]: Without dead ends: 2593 [2022-03-19 13:46:17,294 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 13:46:17,294 INFO L912 BasicCegarLoop]: 205 mSDtfsCounter, 41 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:46:17,295 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 502 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:46:17,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2022-03-19 13:46:17,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2453. [2022-03-19 13:46:17,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4485294117647058) internal successors, (3546), 2448 states have internal predecessors, (3546), 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 13:46:17,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3550 transitions. [2022-03-19 13:46:17,435 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3550 transitions. Word has length 207 [2022-03-19 13:46:17,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:46:17,435 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3550 transitions. [2022-03-19 13:46:17,435 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 13:46:17,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3550 transitions. [2022-03-19 13:46:17,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-03-19 13:46:17,438 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:46:17,438 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:46:17,438 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-19 13:46:17,438 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:46:17,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:46:17,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1263279424, now seen corresponding path program 1 times [2022-03-19 13:46:17,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:46:17,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [957459565] [2022-03-19 13:46:26,257 WARN L232 SmtUtils]: Spent 8.53s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:46:38,108 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:46:38,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1263279424, now seen corresponding path program 2 times [2022-03-19 13:46:38,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:46:38,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465111188] [2022-03-19 13:46:38,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:46:38,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:46:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:46:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:46:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:46:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-03-19 13:46:38,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:46:38,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465111188] [2022-03-19 13:46:38,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465111188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:46:38,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:46:38,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:46:38,275 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:46:38,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [957459565] [2022-03-19 13:46:38,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [957459565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:46:38,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:46:38,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:46:38,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628200039] [2022-03-19 13:46:38,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:46:38,276 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:46:38,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:46:38,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:46:38,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:46:38,276 INFO L87 Difference]: Start difference. First operand 2453 states and 3550 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 13:46:40,284 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 13:46:40,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:46:40,772 INFO L93 Difference]: Finished difference Result 5091 states and 7320 transitions. [2022-03-19 13:46:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:46:40,773 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 207 [2022-03-19 13:46:40,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:46:40,777 INFO L225 Difference]: With dead ends: 5091 [2022-03-19 13:46:40,777 INFO L226 Difference]: Without dead ends: 2654 [2022-03-19 13:46:40,780 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 13:46:40,780 INFO L912 BasicCegarLoop]: 211 mSDtfsCounter, 51 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:46:40,780 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 514 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 434 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:46:40,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2022-03-19 13:46:40,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2453. [2022-03-19 13:46:40,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4444444444444444) internal successors, (3536), 2448 states have internal predecessors, (3536), 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 13:46:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3540 transitions. [2022-03-19 13:46:40,899 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3540 transitions. Word has length 207 [2022-03-19 13:46:40,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:46:40,899 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3540 transitions. [2022-03-19 13:46:40,899 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 13:46:40,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3540 transitions. [2022-03-19 13:46:40,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-03-19 13:46:40,902 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:46:40,903 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:46:40,903 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-19 13:46:40,903 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:46:40,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:46:40,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1538011467, now seen corresponding path program 1 times [2022-03-19 13:46:40,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:46:40,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [305199983] [2022-03-19 13:46:58,059 WARN L232 SmtUtils]: Spent 9.66s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:47:07,010 WARN L232 SmtUtils]: Spent 6.70s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:47:09,383 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:47:09,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1538011467, now seen corresponding path program 2 times [2022-03-19 13:47:09,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:09,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875860945] [2022-03-19 13:47:09,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:09,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:09,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-03-19 13:47:09,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:09,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875860945] [2022-03-19 13:47:09,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875860945] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:09,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:09,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:09,595 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:09,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [305199983] [2022-03-19 13:47:09,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [305199983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:09,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:09,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:09,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783778526] [2022-03-19 13:47:09,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:09,596 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:09,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:09,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:09,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:09,596 INFO L87 Difference]: Start difference. First operand 2453 states and 3540 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states 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 13:47:11,604 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 13:47:12,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:12,019 INFO L93 Difference]: Finished difference Result 4994 states and 7182 transitions. [2022-03-19 13:47:12,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:12,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 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 222 [2022-03-19 13:47:12,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:12,023 INFO L225 Difference]: With dead ends: 4994 [2022-03-19 13:47:12,024 INFO L226 Difference]: Without dead ends: 2557 [2022-03-19 13:47:12,027 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 13:47:12,027 INFO L912 BasicCegarLoop]: 198 mSDtfsCounter, 39 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:12,027 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 488 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:47:12,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2022-03-19 13:47:12,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2453. [2022-03-19 13:47:12,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4411764705882353) internal successors, (3528), 2448 states have internal predecessors, (3528), 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 13:47:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3532 transitions. [2022-03-19 13:47:12,174 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3532 transitions. Word has length 222 [2022-03-19 13:47:12,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:12,174 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3532 transitions. [2022-03-19 13:47:12,174 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states 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 13:47:12,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3532 transitions. [2022-03-19 13:47:12,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-03-19 13:47:12,177 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:12,177 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:12,177 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-19 13:47:12,177 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:12,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:12,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1778251213, now seen corresponding path program 1 times [2022-03-19 13:47:12,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:12,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1300900982] [2022-03-19 13:47:17,318 WARN L232 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 203 DAG size of output: 192 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:47:34,312 WARN L232 SmtUtils]: Spent 13.32s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:47:43,632 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:47:43,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1778251213, now seen corresponding path program 2 times [2022-03-19 13:47:43,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:47:43,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088097197] [2022-03-19 13:47:43,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:47:43,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:47:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:43,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:47:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:47:43,786 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-03-19 13:47:43,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:47:43,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088097197] [2022-03-19 13:47:43,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088097197] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:43,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:43,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:43,786 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:47:43,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1300900982] [2022-03-19 13:47:43,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1300900982] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:47:43,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:47:43,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:47:43,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681300751] [2022-03-19 13:47:43,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:47:43,787 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:47:43,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:43,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:47:43,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:47:43,787 INFO L87 Difference]: Start difference. First operand 2453 states and 3532 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states 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 13:47:45,795 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 13:47:46,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:47:46,326 INFO L93 Difference]: Finished difference Result 5474 states and 7862 transitions. [2022-03-19 13:47:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:47:46,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 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 222 [2022-03-19 13:47:46,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:47:46,331 INFO L225 Difference]: With dead ends: 5474 [2022-03-19 13:47:46,331 INFO L226 Difference]: Without dead ends: 3037 [2022-03-19 13:47:46,350 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 13:47:46,355 INFO L912 BasicCegarLoop]: 105 mSDtfsCounter, 113 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:47:46,355 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 296 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:47:46,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2022-03-19 13:47:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 2453. [2022-03-19 13:47:46,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4268790849673203) internal successors, (3493), 2448 states have internal predecessors, (3493), 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 13:47:46,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3497 transitions. [2022-03-19 13:47:46,508 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3497 transitions. Word has length 222 [2022-03-19 13:47:46,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:47:46,508 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3497 transitions. [2022-03-19 13:47:46,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (3), 2 states 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 13:47:46,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3497 transitions. [2022-03-19 13:47:46,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-03-19 13:47:46,511 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:47:46,512 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:47:46,512 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-19 13:47:46,512 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:47:46,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:47:46,512 INFO L85 PathProgramCache]: Analyzing trace with hash -318441025, now seen corresponding path program 1 times [2022-03-19 13:47:46,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:47:46,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [350888240] [2022-03-19 13:47:59,794 WARN L232 SmtUtils]: Spent 10.52s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:48:15,885 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:15,886 INFO L85 PathProgramCache]: Analyzing trace with hash -318441025, now seen corresponding path program 2 times [2022-03-19 13:48:15,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:15,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986602439] [2022-03-19 13:48:15,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:15,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:15,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:16,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-03-19 13:48:16,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:16,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986602439] [2022-03-19 13:48:16,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986602439] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:16,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:16,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:16,057 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:16,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [350888240] [2022-03-19 13:48:16,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [350888240] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:16,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:16,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:16,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961356183] [2022-03-19 13:48:16,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:16,058 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:16,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:16,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:16,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:16,059 INFO L87 Difference]: Start difference. First operand 2453 states and 3497 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states 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 13:48:18,066 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 13:48:18,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:18,503 INFO L93 Difference]: Finished difference Result 4949 states and 7041 transitions. [2022-03-19 13:48:18,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:18,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 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 223 [2022-03-19 13:48:18,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:18,507 INFO L225 Difference]: With dead ends: 4949 [2022-03-19 13:48:18,507 INFO L226 Difference]: Without dead ends: 2512 [2022-03-19 13:48:18,510 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 13:48:18,511 INFO L912 BasicCegarLoop]: 195 mSDtfsCounter, 25 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:18,511 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 483 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 347 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-19 13:48:18,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2022-03-19 13:48:18,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2453. [2022-03-19 13:48:18,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2453 states, 2448 states have (on average 1.4248366013071896) internal successors, (3488), 2448 states have internal predecessors, (3488), 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 13:48:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2453 states to 2453 states and 3492 transitions. [2022-03-19 13:48:18,650 INFO L78 Accepts]: Start accepts. Automaton has 2453 states and 3492 transitions. Word has length 223 [2022-03-19 13:48:18,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:18,650 INFO L478 AbstractCegarLoop]: Abstraction has 2453 states and 3492 transitions. [2022-03-19 13:48:18,650 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 1 states have call successors, (3), 2 states 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 13:48:18,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2453 states and 3492 transitions. [2022-03-19 13:48:18,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-03-19 13:48:18,654 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:18,654 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:18,654 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-19 13:48:18,654 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:18,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:18,654 INFO L85 PathProgramCache]: Analyzing trace with hash -841165724, now seen corresponding path program 1 times [2022-03-19 13:48:18,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:18,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1662027738] [2022-03-19 13:48:31,836 WARN L232 SmtUtils]: Spent 10.08s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:48:39,713 WARN L232 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 269] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:48:48,003 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:48:48,004 INFO L85 PathProgramCache]: Analyzing trace with hash -841165724, now seen corresponding path program 2 times [2022-03-19 13:48:48,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:48:48,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661512916] [2022-03-19 13:48:48,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:48:48,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:48:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:48,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:48:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:48:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-03-19 13:48:48,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:48:48,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661512916] [2022-03-19 13:48:48,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661512916] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:48,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:48,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:48,142 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:48:48,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1662027738] [2022-03-19 13:48:48,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1662027738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:48:48,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:48:48,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:48:48,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114208722] [2022-03-19 13:48:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:48:48,143 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:48:48,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:48,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:48:48,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:48:48,143 INFO L87 Difference]: Start difference. First operand 2453 states and 3492 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states 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 13:48:50,151 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 13:48:50,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:48:50,689 INFO L93 Difference]: Finished difference Result 5243 states and 7469 transitions. [2022-03-19 13:48:50,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:48:50,690 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 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 224 [2022-03-19 13:48:50,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:48:50,710 INFO L225 Difference]: With dead ends: 5243 [2022-03-19 13:48:50,710 INFO L226 Difference]: Without dead ends: 2806 [2022-03-19 13:48:50,714 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 13:48:50,714 INFO L912 BasicCegarLoop]: 219 mSDtfsCounter, 70 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:48:50,714 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 530 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:48:50,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2022-03-19 13:48:50,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2558. [2022-03-19 13:48:50,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2553 states have (on average 1.4230317273795534) internal successors, (3633), 2553 states have internal predecessors, (3633), 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 13:48:50,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3637 transitions. [2022-03-19 13:48:50,882 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3637 transitions. Word has length 224 [2022-03-19 13:48:50,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:48:50,882 INFO L478 AbstractCegarLoop]: Abstraction has 2558 states and 3637 transitions. [2022-03-19 13:48:50,882 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states 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 13:48:50,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3637 transitions. [2022-03-19 13:48:50,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-03-19 13:48:50,885 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:48:50,885 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:48:50,885 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-19 13:48:50,886 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:48:50,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:48:50,886 INFO L85 PathProgramCache]: Analyzing trace with hash -496155121, now seen corresponding path program 1 times [2022-03-19 13:48:50,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:48:50,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1376024856] [2022-03-19 13:48:59,834 WARN L232 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 241 (called from [L 232] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-03-19 13:49:13,474 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:13,474 INFO L85 PathProgramCache]: Analyzing trace with hash -496155121, now seen corresponding path program 2 times [2022-03-19 13:49:13,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:13,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865670815] [2022-03-19 13:49:13,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:13,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:13,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:13,644 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-03-19 13:49:13,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:13,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865670815] [2022-03-19 13:49:13,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865670815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:13,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:13,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:13,644 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:13,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1376024856] [2022-03-19 13:49:13,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1376024856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:13,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:13,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:13,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305631263] [2022-03-19 13:49:13,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:13,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:13,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:13,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:13,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:13,645 INFO L87 Difference]: Start difference. First operand 2558 states and 3637 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:15,653 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 13:49:16,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:16,231 INFO L93 Difference]: Finished difference Result 5676 states and 8063 transitions. [2022-03-19 13:49:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:16,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 225 [2022-03-19 13:49:16,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:16,237 INFO L225 Difference]: With dead ends: 5676 [2022-03-19 13:49:16,237 INFO L226 Difference]: Without dead ends: 3134 [2022-03-19 13:49:16,241 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 13:49:16,241 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 108 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:16,241 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:49:16,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2022-03-19 13:49:16,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 2558. [2022-03-19 13:49:16,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2558 states, 2553 states have (on average 1.4042303172737955) internal successors, (3585), 2553 states have internal predecessors, (3585), 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 13:49:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2558 states to 2558 states and 3589 transitions. [2022-03-19 13:49:16,428 INFO L78 Accepts]: Start accepts. Automaton has 2558 states and 3589 transitions. Word has length 225 [2022-03-19 13:49:16,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:16,428 INFO L478 AbstractCegarLoop]: Abstraction has 2558 states and 3589 transitions. [2022-03-19 13:49:16,428 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 4 states have internal predecessors, (119), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 13:49:16,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2558 states and 3589 transitions. [2022-03-19 13:49:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-19 13:49:16,432 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:16,432 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:16,432 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-19 13:49:16,432 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:16,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:16,433 INFO L85 PathProgramCache]: Analyzing trace with hash -506813263, now seen corresponding path program 1 times [2022-03-19 13:49:16,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:16,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2058957791] [2022-03-19 13:49:16,434 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:16,434 INFO L85 PathProgramCache]: Analyzing trace with hash -506813263, now seen corresponding path program 2 times [2022-03-19 13:49:16,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:16,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284968935] [2022-03-19 13:49:16,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:16,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:16,611 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2022-03-19 13:49:16,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:16,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284968935] [2022-03-19 13:49:16,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284968935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:16,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:16,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:16,612 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:16,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2058957791] [2022-03-19 13:49:16,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2058957791] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:16,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:16,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:16,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300543221] [2022-03-19 13:49:16,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:16,612 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:16,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:16,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:16,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:16,613 INFO L87 Difference]: Start difference. First operand 2558 states and 3589 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states 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 13:49:18,621 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 13:49:19,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:19,260 INFO L93 Difference]: Finished difference Result 5946 states and 8317 transitions. [2022-03-19 13:49:19,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:19,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 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 235 [2022-03-19 13:49:19,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:19,266 INFO L225 Difference]: With dead ends: 5946 [2022-03-19 13:49:19,266 INFO L226 Difference]: Without dead ends: 3404 [2022-03-19 13:49:19,269 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 13:49:19,269 INFO L912 BasicCegarLoop]: 107 mSDtfsCounter, 90 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:19,269 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 300 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:49:19,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2022-03-19 13:49:19,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 2938. [2022-03-19 13:49:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2933 states have (on average 1.4132287759972724) internal successors, (4145), 2933 states have internal predecessors, (4145), 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 13:49:19,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 4149 transitions. [2022-03-19 13:49:19,494 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 4149 transitions. Word has length 235 [2022-03-19 13:49:19,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:19,494 INFO L478 AbstractCegarLoop]: Abstraction has 2938 states and 4149 transitions. [2022-03-19 13:49:19,494 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states 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 13:49:19,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 4149 transitions. [2022-03-19 13:49:19,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-19 13:49:19,498 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:19,498 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:19,498 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-19 13:49:19,499 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:19,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:19,499 INFO L85 PathProgramCache]: Analyzing trace with hash -622669745, now seen corresponding path program 1 times [2022-03-19 13:49:19,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:19,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [513942068] [2022-03-19 13:49:19,500 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:19,500 INFO L85 PathProgramCache]: Analyzing trace with hash -622669745, now seen corresponding path program 2 times [2022-03-19 13:49:19,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:19,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570158083] [2022-03-19 13:49:19,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:19,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2022-03-19 13:49:19,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:19,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570158083] [2022-03-19 13:49:19,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570158083] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:19,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:19,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:19,669 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 13:49:19,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [513942068] [2022-03-19 13:49:19,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [513942068] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 13:49:19,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 13:49:19,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-19 13:49:19,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125511382] [2022-03-19 13:49:19,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 13:49:19,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-19 13:49:19,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:19,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-19 13:49:19,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-19 13:49:19,670 INFO L87 Difference]: Start difference. First operand 2938 states and 4149 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states 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 13:49:21,678 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 13:49:22,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 13:49:22,332 INFO L93 Difference]: Finished difference Result 6436 states and 9087 transitions. [2022-03-19 13:49:22,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-19 13:49:22,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 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 235 [2022-03-19 13:49:22,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 13:49:22,338 INFO L225 Difference]: With dead ends: 6436 [2022-03-19 13:49:22,338 INFO L226 Difference]: Without dead ends: 3514 [2022-03-19 13:49:22,341 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 13:49:22,342 INFO L912 BasicCegarLoop]: 106 mSDtfsCounter, 88 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 13:49:22,342 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 298 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 391 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 13:49:22,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2022-03-19 13:49:22,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3068. [2022-03-19 13:49:22,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3068 states, 3063 states have (on average 1.4348677766895201) internal successors, (4395), 3063 states have internal predecessors, (4395), 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 13:49:22,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 4399 transitions. [2022-03-19 13:49:22,584 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 4399 transitions. Word has length 235 [2022-03-19 13:49:22,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 13:49:22,584 INFO L478 AbstractCegarLoop]: Abstraction has 3068 states and 4399 transitions. [2022-03-19 13:49:22,584 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 2 states 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 13:49:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 4399 transitions. [2022-03-19 13:49:22,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-03-19 13:49:22,588 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 13:49:22,588 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 13:49:22,588 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-19 13:49:22,588 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 13:49:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 13:49:22,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1454761395, now seen corresponding path program 1 times [2022-03-19 13:49:22,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 13:49:22,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1408454059] [2022-03-19 13:49:22,589 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-19 13:49:22,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1454761395, now seen corresponding path program 2 times [2022-03-19 13:49:22,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 13:49:22,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897590926] [2022-03-19 13:49:22,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 13:49:22,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 13:49:23,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:24,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 13:49:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 13:49:24,503 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 2 proven. 282 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-03-19 13:49:24,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 13:49:24,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897590926] [2022-03-19 13:49:24,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897590926] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 13:49:24,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208648193] [2022-03-19 13:49:24,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 13:49:24,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 13:49:24,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 13:49:24,505 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 13:49:24,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-19 13:50:50,038 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 13:50:50,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 13:50:50,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 339 conjunts are in the unsatisfiable core [2022-03-19 13:50:50,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 13:50:50,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-19 13:50:50,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-19 13:50:50,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-19 13:50:50,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41437 treesize of output 38261 [2022-03-19 13:50:50,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,678 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38166 treesize of output 38042 [2022-03-19 13:50:50,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:50,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,003 INFO L356 Elim1Store]: treesize reduction 2619, result has 16.6 percent of original size [2022-03-19 13:50:53,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 7712596 treesize of output 7661197 [2022-03-19 13:50:53,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,239 INFO L244 Elim1Store]: Index analysis took 115 ms [2022-03-19 13:50:53,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 41 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5244825 treesize of output 388367 [2022-03-19 13:50:53,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 13:50:53,481 INFO L244 Elim1Store]: Index analysis took 121 ms