/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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 09:49:50,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 09:49:50,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 09:49:50,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 09:49:50,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 09:49:50,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 09:49:50,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 09:49:50,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 09:49:50,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 09:49:50,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 09:49:50,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 09:49:50,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 09:49:50,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 09:49:50,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 09:49:50,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 09:49:51,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 09:49:51,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 09:49:51,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 09:49:51,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 09:49:51,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 09:49:51,007 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 09:49:51,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 09:49:51,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 09:49:51,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 09:49:51,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 09:49:51,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-05 09:49:51,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 09:49:51,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 09:49:51,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 09:49:51,020 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-05 09:49:51,041 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 09:49:51,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 09:49:51,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-05 09:49:51,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-05 09:49:51,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-05 09:49:51,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-05 09:49:51,043 INFO L138 SettingsManager]: * Use SBE=true [2022-04-05 09:49:51,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 09:49:51,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 09:49:51,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 09:49:51,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 09:49:51,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 09:49:51,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 09:49:51,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 09:49:51,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 09:49:51,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 09:49:51,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 09:49:51,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 09:49:51,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 09:49:51,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:49:51,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 09:49:51,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-05 09:49:51,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-05 09:49:51,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 09:49:51,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-05 09:49:51,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-05 09:49:51,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-05 09:49:51,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-05 09:49:51,046 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 09:49:51,046 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 09:49:51,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 09:49:51,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 09:49:51,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 09:49:51,243 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 09:49:51,255 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 09:49:51,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-04-05 09:49:51,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fe9c7511/eda8270e16bc421d8b308dcb2789fa4e/FLAG80a149e3e [2022-04-05 09:49:51,707 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 09:49:51,708 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c [2022-04-05 09:49:51,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fe9c7511/eda8270e16bc421d8b308dcb2789fa4e/FLAG80a149e3e [2022-04-05 09:49:51,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fe9c7511/eda8270e16bc421d8b308dcb2789fa4e [2022-04-05 09:49:51,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 09:49:51,745 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 09:49:51,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 09:49:51,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 09:49:51,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 09:49:51,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:49:51" (1/1) ... [2022-04-05 09:49:51,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b8218b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:51, skipping insertion in model container [2022-04-05 09:49:51,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 09:49:51" (1/1) ... [2022-04-05 09:49:51,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 09:49:51,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 09:49:52,044 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c[73581,73594] [2022-04-05 09:49:52,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:49:52,076 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 09:49:52,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.10.i.cil-1.c[73581,73594] [2022-04-05 09:49:52,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 09:49:52,199 INFO L208 MainTranslator]: Completed translation [2022-04-05 09:49:52,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52 WrapperNode [2022-04-05 09:49:52,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 09:49:52,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 09:49:52,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 09:49:52,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 09:49:52,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52" (1/1) ... [2022-04-05 09:49:52,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52" (1/1) ... [2022-04-05 09:49:52,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52" (1/1) ... [2022-04-05 09:49:52,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52" (1/1) ... [2022-04-05 09:49:52,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52" (1/1) ... [2022-04-05 09:49:52,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52" (1/1) ... [2022-04-05 09:49:52,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52" (1/1) ... [2022-04-05 09:49:52,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 09:49:52,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 09:49:52,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 09:49:52,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 09:49:52,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52" (1/1) ... [2022-04-05 09:49:52,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 09:49:52,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:49:52,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-05 09:49:52,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-05 09:49:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 09:49:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 09:49:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 09:49:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 09:49:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 09:49:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 09:49:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 09:49:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 09:49:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 09:49:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 09:49:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 09:49:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 09:49:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 09:49:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 09:49:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 09:49:52,505 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 09:49:52,506 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 09:49:53,397 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 09:49:53,795 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 09:49:53,795 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 09:49:53,804 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 09:49:53,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 09:49:53,809 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 09:49:53,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:49:53 BoogieIcfgContainer [2022-04-05 09:49:53,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 09:49:53,811 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 09:49:53,811 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 09:49:53,812 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 09:49:53,814 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:49:53" (1/1) ... [2022-04-05 09:49:53,815 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-05 09:49:53,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:49:53 BasicIcfg [2022-04-05 09:49:53,846 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 09:49:53,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 09:49:53,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 09:49:53,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 09:49:53,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 09:49:51" (1/4) ... [2022-04-05 09:49:53,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c22f4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:49:53, skipping insertion in model container [2022-04-05 09:49:53,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 09:49:52" (2/4) ... [2022-04-05 09:49:53,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c22f4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 09:49:53, skipping insertion in model container [2022-04-05 09:49:53,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 09:49:53" (3/4) ... [2022-04-05 09:49:53,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c22f4de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 09:49:53, skipping insertion in model container [2022-04-05 09:49:53,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 09:49:53" (4/4) ... [2022-04-05 09:49:53,850 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.10.i.cil-1.cqvasr [2022-04-05 09:49:53,853 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-05 09:49:53,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 09:49:53,885 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 09:49:53,889 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 09:49:53,889 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 09:49:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-05 09:49:53,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-04-05 09:49:53,910 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:49:53,910 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:49:53,911 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:49:53,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:49:53,914 INFO L85 PathProgramCache]: Analyzing trace with hash 645838238, now seen corresponding path program 1 times [2022-04-05 09:49:53,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:49:53,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811302537] [2022-04-05 09:49:53,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:49:53,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:49:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:54,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:49:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:49:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:49:54,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:49:54,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811302537] [2022-04-05 09:49:54,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811302537] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:49:54,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:49:54,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:49:54,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401042442] [2022-04-05 09:49:54,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:49:54,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:49:54,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:49:54,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:49:54,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:49:54,375 INFO L87 Difference]: Start difference. First operand has 156 states, 148 states have (on average 1.7027027027027026) internal successors, (252), 149 states have internal predecessors, (252), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:49:56,094 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:49:58,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:00,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:00,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:00,949 INFO L93 Difference]: Finished difference Result 330 states and 552 transitions. [2022-04-05 09:50:00,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:00,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2022-04-05 09:50:00,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:00,958 INFO L225 Difference]: With dead ends: 330 [2022-04-05 09:50:00,958 INFO L226 Difference]: Without dead ends: 168 [2022-04-05 09:50:00,960 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:00,962 INFO L913 BasicCegarLoop]: 225 mSDtfsCounter, 34 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:00,963 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 595 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 409 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-05 09:50:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-04-05 09:50:00,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 151. [2022-04-05 09:50:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.547945205479452) internal successors, (226), 146 states have internal predecessors, (226), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 230 transitions. [2022-04-05 09:50:00,994 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 230 transitions. Word has length 49 [2022-04-05 09:50:00,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:00,994 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 230 transitions. [2022-04-05 09:50:00,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 230 transitions. [2022-04-05 09:50:00,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-04-05 09:50:00,996 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:00,996 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:00,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 09:50:00,996 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:00,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:00,997 INFO L85 PathProgramCache]: Analyzing trace with hash -371445777, now seen corresponding path program 1 times [2022-04-05 09:50:00,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:00,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191258621] [2022-04-05 09:50:00,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:00,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:01,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:01,163 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:01,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:01,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191258621] [2022-04-05 09:50:01,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191258621] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:01,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:01,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:01,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311296197] [2022-04-05 09:50:01,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:01,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:01,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:01,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:01,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:01,166 INFO L87 Difference]: Start difference. First operand 151 states and 230 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:03,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:05,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:07,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:07,860 INFO L93 Difference]: Finished difference Result 293 states and 443 transitions. [2022-04-05 09:50:07,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:07,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 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 62 [2022-04-05 09:50:07,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:07,862 INFO L225 Difference]: With dead ends: 293 [2022-04-05 09:50:07,862 INFO L226 Difference]: Without dead ends: 168 [2022-04-05 09:50:07,862 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:07,863 INFO L913 BasicCegarLoop]: 183 mSDtfsCounter, 24 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:07,864 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 471 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 358 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 09:50:07,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-04-05 09:50:07,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 151. [2022-04-05 09:50:07,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.5410958904109588) internal successors, (225), 146 states have internal predecessors, (225), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:07,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 229 transitions. [2022-04-05 09:50:07,876 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 229 transitions. Word has length 62 [2022-04-05 09:50:07,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:07,876 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 229 transitions. [2022-04-05 09:50:07,876 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:07,876 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 229 transitions. [2022-04-05 09:50:07,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 09:50:07,877 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:07,878 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:07,878 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 09:50:07,878 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:07,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:07,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2073571452, now seen corresponding path program 1 times [2022-04-05 09:50:07,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:07,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063190042] [2022-04-05 09:50:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:07,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:08,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:08,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:08,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:08,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063190042] [2022-04-05 09:50:08,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063190042] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:08,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:08,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:08,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778782842] [2022-04-05 09:50:08,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:08,040 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:08,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:08,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:08,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:08,041 INFO L87 Difference]: Start difference. First operand 151 states and 229 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:10,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:11,915 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:13,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:13,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:13,984 INFO L93 Difference]: Finished difference Result 292 states and 441 transitions. [2022-04-05 09:50:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:13,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-04-05 09:50:13,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:13,985 INFO L225 Difference]: With dead ends: 292 [2022-04-05 09:50:13,985 INFO L226 Difference]: Without dead ends: 167 [2022-04-05 09:50:13,986 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:13,987 INFO L913 BasicCegarLoop]: 184 mSDtfsCounter, 28 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:13,987 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 473 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 357 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 09:50:13,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-04-05 09:50:13,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 151. [2022-04-05 09:50:13,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 146 states have (on average 1.5342465753424657) internal successors, (224), 146 states have internal predecessors, (224), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 228 transitions. [2022-04-05 09:50:13,994 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 228 transitions. Word has length 63 [2022-04-05 09:50:13,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:13,994 INFO L478 AbstractCegarLoop]: Abstraction has 151 states and 228 transitions. [2022-04-05 09:50:13,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:13,995 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 228 transitions. [2022-04-05 09:50:13,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 09:50:13,996 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:13,996 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:13,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 09:50:13,996 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:13,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:13,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1285979292, now seen corresponding path program 1 times [2022-04-05 09:50:13,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:13,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160084564] [2022-04-05 09:50:13,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:13,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:14,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:14,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:14,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:14,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160084564] [2022-04-05 09:50:14,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160084564] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:14,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:14,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:14,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791900490] [2022-04-05 09:50:14,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:14,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:14,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:14,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:14,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:14,103 INFO L87 Difference]: Start difference. First operand 151 states and 228 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:16,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:18,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:20,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:20,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:20,681 INFO L93 Difference]: Finished difference Result 392 states and 600 transitions. [2022-04-05 09:50:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:20,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-04-05 09:50:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:20,683 INFO L225 Difference]: With dead ends: 392 [2022-04-05 09:50:20,683 INFO L226 Difference]: Without dead ends: 267 [2022-04-05 09:50:20,684 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:20,684 INFO L913 BasicCegarLoop]: 113 mSDtfsCounter, 145 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 64 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:20,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 330 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 09:50:20,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-04-05 09:50:20,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 163. [2022-04-05 09:50:20,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.5253164556962024) internal successors, (241), 158 states have internal predecessors, (241), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 245 transitions. [2022-04-05 09:50:20,693 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 245 transitions. Word has length 63 [2022-04-05 09:50:20,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:20,693 INFO L478 AbstractCegarLoop]: Abstraction has 163 states and 245 transitions. [2022-04-05 09:50:20,693 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:20,693 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 245 transitions. [2022-04-05 09:50:20,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 09:50:20,694 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:20,694 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:20,695 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 09:50:20,695 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:20,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:20,695 INFO L85 PathProgramCache]: Analyzing trace with hash 481034020, now seen corresponding path program 1 times [2022-04-05 09:50:20,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:20,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058436009] [2022-04-05 09:50:20,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:20,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:20,825 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:20,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:20,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058436009] [2022-04-05 09:50:20,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058436009] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:20,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:20,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:20,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429349408] [2022-04-05 09:50:20,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:20,827 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:20,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:20,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:20,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:20,828 INFO L87 Difference]: Start difference. First operand 163 states and 245 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:22,616 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:24,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:26,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:27,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:27,030 INFO L93 Difference]: Finished difference Result 314 states and 473 transitions. [2022-04-05 09:50:27,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:27,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-04-05 09:50:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:27,036 INFO L225 Difference]: With dead ends: 314 [2022-04-05 09:50:27,037 INFO L226 Difference]: Without dead ends: 177 [2022-04-05 09:50:27,037 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:27,038 INFO L913 BasicCegarLoop]: 186 mSDtfsCounter, 20 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:27,038 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 477 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 353 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 09:50:27,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-04-05 09:50:27,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 163. [2022-04-05 09:50:27,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 158 states have (on average 1.518987341772152) internal successors, (240), 158 states have internal predecessors, (240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:27,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 244 transitions. [2022-04-05 09:50:27,047 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 244 transitions. Word has length 63 [2022-04-05 09:50:27,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:27,048 INFO L478 AbstractCegarLoop]: Abstraction has 163 states and 244 transitions. [2022-04-05 09:50:27,048 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:27,048 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 244 transitions. [2022-04-05 09:50:27,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-05 09:50:27,048 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:27,049 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:27,049 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 09:50:27,049 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:27,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:27,049 INFO L85 PathProgramCache]: Analyzing trace with hash 23157764, now seen corresponding path program 1 times [2022-04-05 09:50:27,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:27,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995319092] [2022-04-05 09:50:27,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:27,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:27,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:27,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995319092] [2022-04-05 09:50:27,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995319092] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:27,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:27,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:27,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070916126] [2022-04-05 09:50:27,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:27,159 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:27,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:27,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:27,160 INFO L87 Difference]: Start difference. First operand 163 states and 244 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:30,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:32,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:33,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:33,397 INFO L93 Difference]: Finished difference Result 403 states and 614 transitions. [2022-04-05 09:50:33,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:33,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 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 63 [2022-04-05 09:50:33,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:33,399 INFO L225 Difference]: With dead ends: 403 [2022-04-05 09:50:33,399 INFO L226 Difference]: Without dead ends: 266 [2022-04-05 09:50:33,400 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:33,400 INFO L913 BasicCegarLoop]: 114 mSDtfsCounter, 138 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:33,400 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 332 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 469 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 09:50:33,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-04-05 09:50:33,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 169. [2022-04-05 09:50:33,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.524390243902439) internal successors, (250), 164 states have internal predecessors, (250), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:33,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 254 transitions. [2022-04-05 09:50:33,406 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 254 transitions. Word has length 63 [2022-04-05 09:50:33,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:33,406 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 254 transitions. [2022-04-05 09:50:33,406 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:33,407 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 254 transitions. [2022-04-05 09:50:33,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 09:50:33,407 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:33,407 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:33,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 09:50:33,407 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:33,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:33,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1832620047, now seen corresponding path program 1 times [2022-04-05 09:50:33,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:33,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400369445] [2022-04-05 09:50:33,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:33,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:33,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:33,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:33,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:33,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400369445] [2022-04-05 09:50:33,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400369445] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:33,492 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:33,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:33,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298796591] [2022-04-05 09:50:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:33,492 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:33,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:33,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:33,493 INFO L87 Difference]: Start difference. First operand 169 states and 254 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:34,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:36,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:38,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:39,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:39,229 INFO L93 Difference]: Finished difference Result 325 states and 492 transitions. [2022-04-05 09:50:39,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:39,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-04-05 09:50:39,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:39,231 INFO L225 Difference]: With dead ends: 325 [2022-04-05 09:50:39,231 INFO L226 Difference]: Without dead ends: 182 [2022-04-05 09:50:39,231 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:39,232 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 22 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:39,232 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 09:50:39,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-04-05 09:50:39,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 169. [2022-04-05 09:50:39,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5182926829268293) internal successors, (249), 164 states have internal predecessors, (249), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 253 transitions. [2022-04-05 09:50:39,243 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 253 transitions. Word has length 64 [2022-04-05 09:50:39,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:39,243 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 253 transitions. [2022-04-05 09:50:39,243 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:39,243 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 253 transitions. [2022-04-05 09:50:39,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 09:50:39,244 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:39,244 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:39,244 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 09:50:39,244 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:39,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:39,244 INFO L85 PathProgramCache]: Analyzing trace with hash -713470144, now seen corresponding path program 1 times [2022-04-05 09:50:39,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:39,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370768957] [2022-04-05 09:50:39,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:39,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:39,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:39,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:39,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370768957] [2022-04-05 09:50:39,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370768957] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:39,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:39,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:39,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858502075] [2022-04-05 09:50:39,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:39,345 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:39,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:39,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:39,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:39,345 INFO L87 Difference]: Start difference. First operand 169 states and 253 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:40,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:42,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:44,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:45,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:45,136 INFO L93 Difference]: Finished difference Result 325 states and 491 transitions. [2022-04-05 09:50:45,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:45,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2022-04-05 09:50:45,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:45,137 INFO L225 Difference]: With dead ends: 325 [2022-04-05 09:50:45,137 INFO L226 Difference]: Without dead ends: 182 [2022-04-05 09:50:45,138 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:45,138 INFO L913 BasicCegarLoop]: 187 mSDtfsCounter, 20 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:45,138 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 479 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 09:50:45,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-04-05 09:50:45,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 169. [2022-04-05 09:50:45,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5121951219512195) internal successors, (248), 164 states have internal predecessors, (248), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:45,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 252 transitions. [2022-04-05 09:50:45,142 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 252 transitions. Word has length 65 [2022-04-05 09:50:45,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:45,142 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 252 transitions. [2022-04-05 09:50:45,143 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:45,143 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 252 transitions. [2022-04-05 09:50:45,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 09:50:45,143 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:45,143 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:45,143 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 09:50:45,143 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:45,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:45,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1587929332, now seen corresponding path program 1 times [2022-04-05 09:50:45,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:45,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729098224] [2022-04-05 09:50:45,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:45,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:45,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:45,239 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:45,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:45,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729098224] [2022-04-05 09:50:45,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729098224] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:45,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:45,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:45,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113071800] [2022-04-05 09:50:45,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:45,240 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:45,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:45,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:45,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:45,241 INFO L87 Difference]: Start difference. First operand 169 states and 252 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:48,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:50,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:50,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:50,665 INFO L93 Difference]: Finished difference Result 315 states and 477 transitions. [2022-04-05 09:50:50,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:50,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 09:50:50,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:50,666 INFO L225 Difference]: With dead ends: 315 [2022-04-05 09:50:50,666 INFO L226 Difference]: Without dead ends: 172 [2022-04-05 09:50:50,667 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:50,667 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 11 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:50,667 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 493 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 09:50:50,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-04-05 09:50:50,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2022-04-05 09:50:50,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 164 states have (on average 1.5060975609756098) internal successors, (247), 164 states have internal predecessors, (247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:50,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 251 transitions. [2022-04-05 09:50:50,675 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 251 transitions. Word has length 66 [2022-04-05 09:50:50,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:50,675 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 251 transitions. [2022-04-05 09:50:50,675 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:50,675 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 251 transitions. [2022-04-05 09:50:50,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 09:50:50,676 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:50,676 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:50,676 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 09:50:50,676 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:50,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1876070787, now seen corresponding path program 1 times [2022-04-05 09:50:50,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:50,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233860305] [2022-04-05 09:50:50,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:50,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:50,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233860305] [2022-04-05 09:50:50,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233860305] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:50,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:50,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:50,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102312727] [2022-04-05 09:50:50,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:50,837 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:50,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:50,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:50,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:50,837 INFO L87 Difference]: Start difference. First operand 169 states and 251 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:52,141 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:54,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:56,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:50:56,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:50:56,712 INFO L93 Difference]: Finished difference Result 428 states and 650 transitions. [2022-04-05 09:50:56,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:50:56,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2022-04-05 09:50:56,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:50:56,718 INFO L225 Difference]: With dead ends: 428 [2022-04-05 09:50:56,718 INFO L226 Difference]: Without dead ends: 285 [2022-04-05 09:50:56,718 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:50:56,719 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 117 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:50:56,719 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 09:50:56,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-04-05 09:50:56,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 209. [2022-04-05 09:50:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 204 states have (on average 1.5588235294117647) internal successors, (318), 204 states have internal predecessors, (318), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:56,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 322 transitions. [2022-04-05 09:50:56,724 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 322 transitions. Word has length 66 [2022-04-05 09:50:56,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:50:56,724 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 322 transitions. [2022-04-05 09:50:56,724 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:56,725 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 322 transitions. [2022-04-05 09:50:56,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 09:50:56,725 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:50:56,725 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:50:56,725 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 09:50:56,725 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:50:56,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:50:56,726 INFO L85 PathProgramCache]: Analyzing trace with hash 2000777135, now seen corresponding path program 1 times [2022-04-05 09:50:56,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:50:56,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278960875] [2022-04-05 09:50:56,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:50:56,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:50:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:56,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:50:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:50:56,814 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:50:56,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:50:56,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278960875] [2022-04-05 09:50:56,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278960875] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:50:56,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:50:56,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:50:56,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126189864] [2022-04-05 09:50:56,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:50:56,815 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:50:56,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:50:56,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:50:56,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:50:56,816 INFO L87 Difference]: Start difference. First operand 209 states and 322 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:50:58,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:00,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:01,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:02,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:02,059 INFO L93 Difference]: Finished difference Result 434 states and 677 transitions. [2022-04-05 09:51:02,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:51:02,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2022-04-05 09:51:02,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:02,061 INFO L225 Difference]: With dead ends: 434 [2022-04-05 09:51:02,061 INFO L226 Difference]: Without dead ends: 251 [2022-04-05 09:51:02,061 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:51:02,062 INFO L913 BasicCegarLoop]: 191 mSDtfsCounter, 32 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:02,062 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 493 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 09:51:02,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-04-05 09:51:02,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 231. [2022-04-05 09:51:02,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5663716814159292) internal successors, (354), 226 states have internal predecessors, (354), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 358 transitions. [2022-04-05 09:51:02,067 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 358 transitions. Word has length 67 [2022-04-05 09:51:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:02,067 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 358 transitions. [2022-04-05 09:51:02,067 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 358 transitions. [2022-04-05 09:51:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-04-05 09:51:02,068 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:02,068 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:02,068 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 09:51:02,068 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:02,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:02,068 INFO L85 PathProgramCache]: Analyzing trace with hash 790176540, now seen corresponding path program 1 times [2022-04-05 09:51:02,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:02,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256282345] [2022-04-05 09:51:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:02,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:02,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:02,171 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:51:02,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:02,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256282345] [2022-04-05 09:51:02,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256282345] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:02,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:02,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:51:02,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240521660] [2022-04-05 09:51:02,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:02,172 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:51:02,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:02,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:51:02,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:51:02,173 INFO L87 Difference]: Start difference. First operand 231 states and 358 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) [2022-04-05 09:51:04,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:05,756 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:07,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:07,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:07,580 INFO L93 Difference]: Finished difference Result 456 states and 712 transitions. [2022-04-05 09:51:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:51:07,580 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 80 [2022-04-05 09:51:07,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:07,581 INFO L225 Difference]: With dead ends: 456 [2022-04-05 09:51:07,581 INFO L226 Difference]: Without dead ends: 251 [2022-04-05 09:51:07,582 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:51:07,582 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 37 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:07,582 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 493 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 09:51:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-04-05 09:51:07,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 231. [2022-04-05 09:51:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.5619469026548674) internal successors, (353), 226 states have internal predecessors, (353), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:07,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 357 transitions. [2022-04-05 09:51:07,587 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 357 transitions. Word has length 80 [2022-04-05 09:51:07,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:07,587 INFO L478 AbstractCegarLoop]: Abstraction has 231 states and 357 transitions. [2022-04-05 09:51:07,587 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) [2022-04-05 09:51:07,587 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 357 transitions. [2022-04-05 09:51:07,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-05 09:51:07,588 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:07,588 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:07,588 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 09:51:07,588 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:07,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:07,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1536312119, now seen corresponding path program 1 times [2022-04-05 09:51:07,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:07,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955796639] [2022-04-05 09:51:07,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:07,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:07,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:07,686 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-05 09:51:07,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:07,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955796639] [2022-04-05 09:51:07,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955796639] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:07,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:07,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:51:07,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824075107] [2022-04-05 09:51:07,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:07,687 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:51:07,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:07,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:51:07,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:51:07,687 INFO L87 Difference]: Start difference. First operand 231 states and 357 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) [2022-04-05 09:51:10,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:12,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:13,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:14,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:14,038 INFO L93 Difference]: Finished difference Result 465 states and 726 transitions. [2022-04-05 09:51:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:51:14,038 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 [2022-04-05 09:51:14,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:14,039 INFO L225 Difference]: With dead ends: 465 [2022-04-05 09:51:14,039 INFO L226 Difference]: Without dead ends: 260 [2022-04-05 09:51:14,040 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:51:14,040 INFO L913 BasicCegarLoop]: 227 mSDtfsCounter, 21 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:14,040 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 564 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 395 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-04-05 09:51:14,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-04-05 09:51:14,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 247. [2022-04-05 09:51:14,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.56198347107438) internal successors, (378), 242 states have internal predecessors, (378), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:14,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2022-04-05 09:51:14,046 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 81 [2022-04-05 09:51:14,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:14,046 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2022-04-05 09:51:14,046 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) [2022-04-05 09:51:14,046 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2022-04-05 09:51:14,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-04-05 09:51:14,047 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:14,047 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:14,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 09:51:14,047 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:14,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash 347046185, now seen corresponding path program 1 times [2022-04-05 09:51:14,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:14,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768526632] [2022-04-05 09:51:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:14,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:51:14,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:14,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768526632] [2022-04-05 09:51:14,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768526632] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:14,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:14,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:51:14,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230116074] [2022-04-05 09:51:14,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:14,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:51:14,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:14,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:51:14,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:51:14,181 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:17,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:19,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:21,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:21,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:21,531 INFO L93 Difference]: Finished difference Result 565 states and 882 transitions. [2022-04-05 09:51:21,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:51:21,531 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 81 [2022-04-05 09:51:21,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:21,532 INFO L225 Difference]: With dead ends: 565 [2022-04-05 09:51:21,532 INFO L226 Difference]: Without dead ends: 344 [2022-04-05 09:51:21,533 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:51:21,533 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 139 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:21,533 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 469 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2022-04-05 09:51:21,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-04-05 09:51:21,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 247. [2022-04-05 09:51:21,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 242 states have (on average 1.5495867768595042) internal successors, (375), 242 states have internal predecessors, (375), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:21,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 379 transitions. [2022-04-05 09:51:21,538 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 379 transitions. Word has length 81 [2022-04-05 09:51:21,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:21,538 INFO L478 AbstractCegarLoop]: Abstraction has 247 states and 379 transitions. [2022-04-05 09:51:21,538 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:21,538 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 379 transitions. [2022-04-05 09:51:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-04-05 09:51:21,539 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:21,539 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:21,539 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 09:51:21,539 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:21,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:21,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1259335863, now seen corresponding path program 1 times [2022-04-05 09:51:21,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:21,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317285586] [2022-04-05 09:51:21,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:21,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:21,649 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-05 09:51:21,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:21,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317285586] [2022-04-05 09:51:21,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317285586] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:21,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:21,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 09:51:21,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597235424] [2022-04-05 09:51:21,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:21,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 09:51:21,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:21,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 09:51:21,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:51:21,650 INFO L87 Difference]: Start difference. First operand 247 states and 379 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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) [2022-04-05 09:51:23,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:25,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:27,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:28,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:29,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:29,532 INFO L93 Difference]: Finished difference Result 477 states and 740 transitions. [2022-04-05 09:51:29,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 09:51:29,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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 82 [2022-04-05 09:51:29,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:29,533 INFO L225 Difference]: With dead ends: 477 [2022-04-05 09:51:29,533 INFO L226 Difference]: Without dead ends: 256 [2022-04-05 09:51:29,535 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-05 09:51:29,536 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 3 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:29,536 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 617 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 430 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-04-05 09:51:29,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-04-05 09:51:29,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-04-05 09:51:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5378486055776892) internal successors, (386), 251 states have internal predecessors, (386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:29,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 390 transitions. [2022-04-05 09:51:29,541 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 390 transitions. Word has length 82 [2022-04-05 09:51:29,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:29,541 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 390 transitions. [2022-04-05 09:51:29,541 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 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) [2022-04-05 09:51:29,542 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 390 transitions. [2022-04-05 09:51:29,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-05 09:51:29,544 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:29,544 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:29,544 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 09:51:29,544 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:29,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:29,545 INFO L85 PathProgramCache]: Analyzing trace with hash 577429668, now seen corresponding path program 1 times [2022-04-05 09:51:29,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:29,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160692691] [2022-04-05 09:51:29,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:29,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:29,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:51:29,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:29,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160692691] [2022-04-05 09:51:29,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160692691] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:29,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:29,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:51:29,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575896084] [2022-04-05 09:51:29,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:29,632 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:51:29,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:29,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:51:29,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:51:29,632 INFO L87 Difference]: Start difference. First operand 256 states and 390 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:31,525 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:33,494 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:35,519 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:37,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:37,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:37,871 INFO L93 Difference]: Finished difference Result 513 states and 785 transitions. [2022-04-05 09:51:37,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:51:37,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-05 09:51:37,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:37,873 INFO L225 Difference]: With dead ends: 513 [2022-04-05 09:51:37,873 INFO L226 Difference]: Without dead ends: 283 [2022-04-05 09:51:37,873 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:51:37,874 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 38 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:37,874 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 497 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 385 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-04-05 09:51:37,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-04-05 09:51:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 256. [2022-04-05 09:51:37,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5338645418326693) internal successors, (385), 251 states have internal predecessors, (385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:37,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 389 transitions. [2022-04-05 09:51:37,879 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 389 transitions. Word has length 83 [2022-04-05 09:51:37,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:37,879 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 389 transitions. [2022-04-05 09:51:37,879 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:37,879 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 389 transitions. [2022-04-05 09:51:37,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-04-05 09:51:37,880 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:37,880 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:37,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 09:51:37,880 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:37,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:37,880 INFO L85 PathProgramCache]: Analyzing trace with hash 744830387, now seen corresponding path program 1 times [2022-04-05 09:51:37,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:37,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394760934] [2022-04-05 09:51:37,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:37,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:37,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:37,977 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:51:37,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:37,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394760934] [2022-04-05 09:51:37,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394760934] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:37,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:37,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:51:37,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23741975] [2022-04-05 09:51:37,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:37,978 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:51:37,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:37,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:51:37,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:51:37,979 INFO L87 Difference]: Start difference. First operand 256 states and 389 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:39,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:41,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:43,998 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:44,470 INFO L93 Difference]: Finished difference Result 592 states and 907 transitions. [2022-04-05 09:51:44,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:51:44,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2022-04-05 09:51:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:44,472 INFO L225 Difference]: With dead ends: 592 [2022-04-05 09:51:44,472 INFO L226 Difference]: Without dead ends: 362 [2022-04-05 09:51:44,472 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:51:44,473 INFO L913 BasicCegarLoop]: 115 mSDtfsCounter, 141 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 63 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:44,473 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 334 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-04-05 09:51:44,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-04-05 09:51:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 256. [2022-04-05 09:51:44,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5179282868525896) internal successors, (381), 251 states have internal predecessors, (381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 385 transitions. [2022-04-05 09:51:44,479 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 385 transitions. Word has length 84 [2022-04-05 09:51:44,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:44,480 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 385 transitions. [2022-04-05 09:51:44,480 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:44,480 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 385 transitions. [2022-04-05 09:51:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-04-05 09:51:44,480 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:44,480 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:44,481 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 09:51:44,481 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:44,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:44,481 INFO L85 PathProgramCache]: Analyzing trace with hash 253061153, now seen corresponding path program 1 times [2022-04-05 09:51:44,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:44,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160426655] [2022-04-05 09:51:44,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:44,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:44,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:44,569 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:51:44,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:44,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160426655] [2022-04-05 09:51:44,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160426655] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:44,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:44,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:51:44,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201539576] [2022-04-05 09:51:44,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:44,571 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:51:44,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:44,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:51:44,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:51:44,571 INFO L87 Difference]: Start difference. First operand 256 states and 385 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:46,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:48,916 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:49,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:49,262 INFO L93 Difference]: Finished difference Result 503 states and 762 transitions. [2022-04-05 09:51:49,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:51:49,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 85 [2022-04-05 09:51:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:49,263 INFO L225 Difference]: With dead ends: 503 [2022-04-05 09:51:49,263 INFO L226 Difference]: Without dead ends: 273 [2022-04-05 09:51:49,264 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:51:49,264 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 33 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:49,264 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 499 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 384 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 09:51:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-04-05 09:51:49,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 256. [2022-04-05 09:51:49,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 251 states have (on average 1.5139442231075697) internal successors, (380), 251 states have internal predecessors, (380), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 384 transitions. [2022-04-05 09:51:49,270 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 384 transitions. Word has length 85 [2022-04-05 09:51:49,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:49,270 INFO L478 AbstractCegarLoop]: Abstraction has 256 states and 384 transitions. [2022-04-05 09:51:49,270 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:49,270 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 384 transitions. [2022-04-05 09:51:49,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-05 09:51:49,271 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:49,271 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:49,271 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 09:51:49,271 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:49,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1425775569, now seen corresponding path program 1 times [2022-04-05 09:51:49,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:49,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71483063] [2022-04-05 09:51:49,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:49,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-05 09:51:49,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:49,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71483063] [2022-04-05 09:51:49,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71483063] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:49,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:49,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:51:49,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087252317] [2022-04-05 09:51:49,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:49,371 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:51:49,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:49,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:51:49,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:51:49,371 INFO L87 Difference]: Start difference. First operand 256 states and 384 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:51,393 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:51,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:51,819 INFO L93 Difference]: Finished difference Result 711 states and 1087 transitions. [2022-04-05 09:51:51,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:51:51,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2022-04-05 09:51:51,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:51,821 INFO L225 Difference]: With dead ends: 711 [2022-04-05 09:51:51,821 INFO L226 Difference]: Without dead ends: 481 [2022-04-05 09:51:51,821 INFO L912 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 [2022-04-05 09:51:51,821 INFO L913 BasicCegarLoop]: 337 mSDtfsCounter, 159 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:51,822 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 531 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:51:51,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-04-05 09:51:51,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2022-04-05 09:51:51,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 476 states have (on average 1.5147058823529411) internal successors, (721), 476 states have internal predecessors, (721), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 725 transitions. [2022-04-05 09:51:51,829 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 725 transitions. Word has length 89 [2022-04-05 09:51:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:51,829 INFO L478 AbstractCegarLoop]: Abstraction has 481 states and 725 transitions. [2022-04-05 09:51:51,829 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:51,829 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 725 transitions. [2022-04-05 09:51:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-04-05 09:51:51,830 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:51,830 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:51,830 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 09:51:51,830 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:51,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:51,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1874472208, now seen corresponding path program 1 times [2022-04-05 09:51:51,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:51,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659338462] [2022-04-05 09:51:51,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:51,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:51,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:51,927 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:51:51,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:51,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659338462] [2022-04-05 09:51:51,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659338462] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:51,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:51,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:51:51,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070905644] [2022-04-05 09:51:51,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:51,928 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:51:51,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:51,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:51:51,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:51:51,928 INFO L87 Difference]: Start difference. First operand 481 states and 725 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) [2022-04-05 09:51:53,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:54,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:51:54,396 INFO L93 Difference]: Finished difference Result 1144 states and 1728 transitions. [2022-04-05 09:51:54,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:51:54,396 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 89 [2022-04-05 09:51:54,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:51:54,398 INFO L225 Difference]: With dead ends: 1144 [2022-04-05 09:51:54,399 INFO L226 Difference]: Without dead ends: 689 [2022-04-05 09:51:54,399 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:51:54,400 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 114 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:51:54,400 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 352 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:51:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-04-05 09:51:54,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 525. [2022-04-05 09:51:54,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 520 states have (on average 1.551923076923077) internal successors, (807), 520 states have internal predecessors, (807), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 811 transitions. [2022-04-05 09:51:54,412 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 811 transitions. Word has length 89 [2022-04-05 09:51:54,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:51:54,412 INFO L478 AbstractCegarLoop]: Abstraction has 525 states and 811 transitions. [2022-04-05 09:51:54,413 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) [2022-04-05 09:51:54,413 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 811 transitions. [2022-04-05 09:51:54,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-05 09:51:54,414 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:51:54,414 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:51:54,414 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 09:51:54,415 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:51:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:51:54,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1992106647, now seen corresponding path program 1 times [2022-04-05 09:51:54,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:51:54,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355370878] [2022-04-05 09:51:54,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:51:54,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:51:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:54,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:51:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:51:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:51:54,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:51:54,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355370878] [2022-04-05 09:51:54,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355370878] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:51:54,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:51:54,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:51:54,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159869181] [2022-04-05 09:51:54,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:51:54,527 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:51:54,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:51:54,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:51:54,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:51:54,528 INFO L87 Difference]: Start difference. First operand 525 states and 811 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:51:57,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:51:59,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:00,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:00,435 INFO L93 Difference]: Finished difference Result 1229 states and 1892 transitions. [2022-04-05 09:52:00,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:00,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-05 09:52:00,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:00,438 INFO L225 Difference]: With dead ends: 1229 [2022-04-05 09:52:00,438 INFO L226 Difference]: Without dead ends: 730 [2022-04-05 09:52:00,439 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:00,439 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 86 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:00,440 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 497 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 528 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 09:52:00,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2022-04-05 09:52:00,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 592. [2022-04-05 09:52:00,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 587 states have (on average 1.5638841567291313) internal successors, (918), 587 states have internal predecessors, (918), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:00,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 922 transitions. [2022-04-05 09:52:00,450 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 922 transitions. Word has length 117 [2022-04-05 09:52:00,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:00,450 INFO L478 AbstractCegarLoop]: Abstraction has 592 states and 922 transitions. [2022-04-05 09:52:00,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:00,450 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 922 transitions. [2022-04-05 09:52:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-04-05 09:52:00,451 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:00,451 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:00,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 09:52:00,452 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:00,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:00,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2056547562, now seen corresponding path program 1 times [2022-04-05 09:52:00,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:00,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071119342] [2022-04-05 09:52:00,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:00,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:00,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 09:52:00,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:00,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071119342] [2022-04-05 09:52:00,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071119342] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:00,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:00,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:00,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129804802] [2022-04-05 09:52:00,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:00,542 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:00,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:00,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:00,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:00,542 INFO L87 Difference]: Start difference. First operand 592 states and 922 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:02,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:04,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:05,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:05,030 INFO L93 Difference]: Finished difference Result 1216 states and 1896 transitions. [2022-04-05 09:52:05,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:05,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 117 [2022-04-05 09:52:05,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:05,033 INFO L225 Difference]: With dead ends: 1216 [2022-04-05 09:52:05,033 INFO L226 Difference]: Without dead ends: 650 [2022-04-05 09:52:05,034 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:05,034 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 36 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:05,034 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 591 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-05 09:52:05,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-04-05 09:52:05,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 616. [2022-04-05 09:52:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 611 states have (on average 1.5646481178396072) internal successors, (956), 611 states have internal predecessors, (956), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:05,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 960 transitions. [2022-04-05 09:52:05,055 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 960 transitions. Word has length 117 [2022-04-05 09:52:05,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:05,055 INFO L478 AbstractCegarLoop]: Abstraction has 616 states and 960 transitions. [2022-04-05 09:52:05,055 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:05,055 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 960 transitions. [2022-04-05 09:52:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-05 09:52:05,057 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:05,057 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:05,057 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 09:52:05,057 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:05,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:05,057 INFO L85 PathProgramCache]: Analyzing trace with hash 2081762659, now seen corresponding path program 1 times [2022-04-05 09:52:05,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:05,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505568929] [2022-04-05 09:52:05,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:05,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:05,163 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:52:05,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:05,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505568929] [2022-04-05 09:52:05,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505568929] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:05,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:05,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:05,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779332867] [2022-04-05 09:52:05,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:05,165 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:05,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:05,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:05,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:05,165 INFO L87 Difference]: Start difference. First operand 616 states and 960 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:07,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:09,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:09,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:09,818 INFO L93 Difference]: Finished difference Result 1450 states and 2248 transitions. [2022-04-05 09:52:09,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:09,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2022-04-05 09:52:09,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:09,821 INFO L225 Difference]: With dead ends: 1450 [2022-04-05 09:52:09,821 INFO L226 Difference]: Without dead ends: 860 [2022-04-05 09:52:09,822 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:09,822 INFO L913 BasicCegarLoop]: 124 mSDtfsCounter, 116 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:09,822 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 352 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 481 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 09:52:09,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2022-04-05 09:52:09,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 690. [2022-04-05 09:52:09,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 685 states have (on average 1.5795620437956204) internal successors, (1082), 685 states have internal predecessors, (1082), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:09,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1086 transitions. [2022-04-05 09:52:09,834 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1086 transitions. Word has length 122 [2022-04-05 09:52:09,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:09,834 INFO L478 AbstractCegarLoop]: Abstraction has 690 states and 1086 transitions. [2022-04-05 09:52:09,834 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1086 transitions. [2022-04-05 09:52:09,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-04-05 09:52:09,836 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:09,836 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:09,836 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 09:52:09,836 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:09,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:09,836 INFO L85 PathProgramCache]: Analyzing trace with hash 185272698, now seen corresponding path program 1 times [2022-04-05 09:52:09,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:09,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732420542] [2022-04-05 09:52:09,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:09,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:09,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-04-05 09:52:09,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:09,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732420542] [2022-04-05 09:52:09,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732420542] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:09,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:09,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:52:09,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80720853] [2022-04-05 09:52:09,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:09,927 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:52:09,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:09,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:52:09,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:52:09,928 INFO L87 Difference]: Start difference. First operand 690 states and 1086 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) [2022-04-05 09:52:11,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:13,682 INFO L93 Difference]: Finished difference Result 1356 states and 2145 transitions. [2022-04-05 09:52:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:52:13,683 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 122 [2022-04-05 09:52:13,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:13,685 INFO L225 Difference]: With dead ends: 1356 [2022-04-05 09:52:13,685 INFO L226 Difference]: Without dead ends: 692 [2022-04-05 09:52:13,686 INFO L912 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 [2022-04-05 09:52:13,686 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:13,686 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 392 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-05 09:52:13,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-04-05 09:52:13,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2022-04-05 09:52:13,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 687 states have (on average 1.5778748180494906) internal successors, (1084), 687 states have internal predecessors, (1084), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:13,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1088 transitions. [2022-04-05 09:52:13,697 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1088 transitions. Word has length 122 [2022-04-05 09:52:13,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:13,697 INFO L478 AbstractCegarLoop]: Abstraction has 692 states and 1088 transitions. [2022-04-05 09:52:13,697 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) [2022-04-05 09:52:13,697 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1088 transitions. [2022-04-05 09:52:13,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 09:52:13,699 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:13,699 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:13,699 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 09:52:13,699 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:13,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:13,699 INFO L85 PathProgramCache]: Analyzing trace with hash 445754168, now seen corresponding path program 1 times [2022-04-05 09:52:13,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:13,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460723643] [2022-04-05 09:52:13,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:13,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:13,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:13,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:13,796 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:52:13,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:13,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460723643] [2022-04-05 09:52:13,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460723643] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:13,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:13,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:13,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229835873] [2022-04-05 09:52:13,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:13,797 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:13,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:13,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:13,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:13,797 INFO L87 Difference]: Start difference. First operand 692 states and 1088 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:16,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:18,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:20,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:20,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:20,881 INFO L93 Difference]: Finished difference Result 1490 states and 2325 transitions. [2022-04-05 09:52:20,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:20,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 09:52:20,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:20,884 INFO L225 Difference]: With dead ends: 1490 [2022-04-05 09:52:20,884 INFO L226 Difference]: Without dead ends: 826 [2022-04-05 09:52:20,885 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:20,886 INFO L913 BasicCegarLoop]: 193 mSDtfsCounter, 77 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:20,886 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 497 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 524 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-04-05 09:52:20,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2022-04-05 09:52:20,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 704. [2022-04-05 09:52:20,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.5793991416309012) internal successors, (1104), 699 states have internal predecessors, (1104), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:20,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1108 transitions. [2022-04-05 09:52:20,899 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1108 transitions. Word has length 123 [2022-04-05 09:52:20,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:20,899 INFO L478 AbstractCegarLoop]: Abstraction has 704 states and 1108 transitions. [2022-04-05 09:52:20,899 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1108 transitions. [2022-04-05 09:52:20,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-04-05 09:52:20,900 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:20,900 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:20,901 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 09:52:20,901 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:20,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:20,901 INFO L85 PathProgramCache]: Analyzing trace with hash -653488844, now seen corresponding path program 1 times [2022-04-05 09:52:20,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:20,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794906079] [2022-04-05 09:52:20,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:20,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:20,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:20,998 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:52:20,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:20,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794906079] [2022-04-05 09:52:20,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794906079] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:20,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:20,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:20,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506690998] [2022-04-05 09:52:20,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:20,999 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:20,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:20,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:20,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:21,000 INFO L87 Difference]: Start difference. First operand 704 states and 1108 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) [2022-04-05 09:52:22,383 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:24,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:26,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:28,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:28,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:28,543 INFO L93 Difference]: Finished difference Result 1498 states and 2339 transitions. [2022-04-05 09:52:28,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:28,543 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 130 [2022-04-05 09:52:28,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:28,545 INFO L225 Difference]: With dead ends: 1498 [2022-04-05 09:52:28,546 INFO L226 Difference]: Without dead ends: 822 [2022-04-05 09:52:28,546 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:28,549 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 98 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:28,550 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 493 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 518 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 09:52:28,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-04-05 09:52:28,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 704. [2022-04-05 09:52:28,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.5765379113018598) internal successors, (1102), 699 states have internal predecessors, (1102), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1106 transitions. [2022-04-05 09:52:28,571 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1106 transitions. Word has length 130 [2022-04-05 09:52:28,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:28,571 INFO L478 AbstractCegarLoop]: Abstraction has 704 states and 1106 transitions. [2022-04-05 09:52:28,572 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) [2022-04-05 09:52:28,572 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1106 transitions. [2022-04-05 09:52:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-04-05 09:52:28,573 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:28,573 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:28,573 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 09:52:28,573 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:28,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:28,574 INFO L85 PathProgramCache]: Analyzing trace with hash 129890131, now seen corresponding path program 1 times [2022-04-05 09:52:28,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:28,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652169135] [2022-04-05 09:52:28,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:28,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:28,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:28,673 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:52:28,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:28,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652169135] [2022-04-05 09:52:28,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652169135] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:28,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:28,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:28,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410882968] [2022-04-05 09:52:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:28,674 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:28,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:28,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:28,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:28,674 INFO L87 Difference]: Start difference. First operand 704 states and 1106 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) [2022-04-05 09:52:30,814 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:33,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:34,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:34,055 INFO L93 Difference]: Finished difference Result 1412 states and 2221 transitions. [2022-04-05 09:52:34,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:34,056 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 130 [2022-04-05 09:52:34,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:34,057 INFO L225 Difference]: With dead ends: 1412 [2022-04-05 09:52:34,058 INFO L226 Difference]: Without dead ends: 736 [2022-04-05 09:52:34,058 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:34,059 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 43 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:34,059 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 591 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 09:52:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-04-05 09:52:34,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 704. [2022-04-05 09:52:34,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 699 states have (on average 1.5751072961373391) internal successors, (1101), 699 states have internal predecessors, (1101), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:34,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1105 transitions. [2022-04-05 09:52:34,068 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1105 transitions. Word has length 130 [2022-04-05 09:52:34,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:34,068 INFO L478 AbstractCegarLoop]: Abstraction has 704 states and 1105 transitions. [2022-04-05 09:52:34,068 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) [2022-04-05 09:52:34,069 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1105 transitions. [2022-04-05 09:52:34,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-04-05 09:52:34,070 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:34,070 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:34,070 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 09:52:34,070 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:34,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:34,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1621563087, now seen corresponding path program 1 times [2022-04-05 09:52:34,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:34,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657885206] [2022-04-05 09:52:34,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:34,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:34,169 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:52:34,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:34,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657885206] [2022-04-05 09:52:34,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657885206] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:34,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:34,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:34,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091701959] [2022-04-05 09:52:34,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:34,170 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:34,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:34,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:34,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:34,171 INFO L87 Difference]: Start difference. First operand 704 states and 1105 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) [2022-04-05 09:52:35,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:37,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:37,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:37,939 INFO L93 Difference]: Finished difference Result 1624 states and 2534 transitions. [2022-04-05 09:52:37,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:37,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2022-04-05 09:52:37,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:37,945 INFO L225 Difference]: With dead ends: 1624 [2022-04-05 09:52:37,945 INFO L226 Difference]: Without dead ends: 948 [2022-04-05 09:52:37,946 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:37,947 INFO L913 BasicCegarLoop]: 121 mSDtfsCounter, 109 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:37,947 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 347 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-04-05 09:52:37,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2022-04-05 09:52:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 790. [2022-04-05 09:52:37,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 785 states have (on average 1.5885350318471338) internal successors, (1247), 785 states have internal predecessors, (1247), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1251 transitions. [2022-04-05 09:52:37,963 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1251 transitions. Word has length 131 [2022-04-05 09:52:37,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:37,963 INFO L478 AbstractCegarLoop]: Abstraction has 790 states and 1251 transitions. [2022-04-05 09:52:37,963 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) [2022-04-05 09:52:37,963 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1251 transitions. [2022-04-05 09:52:37,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 09:52:37,965 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:37,965 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:37,965 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 09:52:37,965 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:37,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:37,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1699130074, now seen corresponding path program 1 times [2022-04-05 09:52:37,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:37,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347022004] [2022-04-05 09:52:37,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:37,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:38,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:38,063 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 09:52:38,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:38,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347022004] [2022-04-05 09:52:38,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347022004] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:38,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:38,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:38,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598608989] [2022-04-05 09:52:38,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:38,065 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:38,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:38,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:38,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:38,066 INFO L87 Difference]: Start difference. First operand 790 states and 1251 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:41,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:42,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:44,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:44,326 INFO L93 Difference]: Finished difference Result 1716 states and 2690 transitions. [2022-04-05 09:52:44,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:44,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 132 [2022-04-05 09:52:44,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:44,328 INFO L225 Difference]: With dead ends: 1716 [2022-04-05 09:52:44,328 INFO L226 Difference]: Without dead ends: 950 [2022-04-05 09:52:44,329 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:44,330 INFO L913 BasicCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:44,330 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 362 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 485 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 09:52:44,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-04-05 09:52:44,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 794. [2022-04-05 09:52:44,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.58808618504436) internal successors, (1253), 789 states have internal predecessors, (1253), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:44,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1257 transitions. [2022-04-05 09:52:44,352 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1257 transitions. Word has length 132 [2022-04-05 09:52:44,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:44,353 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1257 transitions. [2022-04-05 09:52:44,353 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1257 transitions. [2022-04-05 09:52:44,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 09:52:44,354 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:44,354 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:44,354 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 09:52:44,354 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:44,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:44,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2112101086, now seen corresponding path program 1 times [2022-04-05 09:52:44,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:44,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886039573] [2022-04-05 09:52:44,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:44,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:44,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:44,461 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:52:44,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:44,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886039573] [2022-04-05 09:52:44,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886039573] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:44,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:44,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:44,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659074640] [2022-04-05 09:52:44,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:44,461 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:44,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:44,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:44,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:44,462 INFO L87 Difference]: Start difference. First operand 794 states and 1257 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:47,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:49,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:51,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:51,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:51,481 INFO L93 Difference]: Finished difference Result 1666 states and 2619 transitions. [2022-04-05 09:52:51,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:51,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-05 09:52:51,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:51,483 INFO L225 Difference]: With dead ends: 1666 [2022-04-05 09:52:51,483 INFO L226 Difference]: Without dead ends: 900 [2022-04-05 09:52:51,484 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:51,485 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 91 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:51,485 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 497 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 510 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2022-04-05 09:52:51,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2022-04-05 09:52:51,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 794. [2022-04-05 09:52:51,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.585551330798479) internal successors, (1251), 789 states have internal predecessors, (1251), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:51,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1255 transitions. [2022-04-05 09:52:51,497 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1255 transitions. Word has length 133 [2022-04-05 09:52:51,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:51,497 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1255 transitions. [2022-04-05 09:52:51,497 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:51,498 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1255 transitions. [2022-04-05 09:52:51,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-05 09:52:51,499 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:51,499 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:51,499 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 09:52:51,499 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:51,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:51,500 INFO L85 PathProgramCache]: Analyzing trace with hash 902858847, now seen corresponding path program 1 times [2022-04-05 09:52:51,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:51,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214040617] [2022-04-05 09:52:51,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:51,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:51,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:51,619 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:52:51,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:51,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214040617] [2022-04-05 09:52:51,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214040617] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:51,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:51,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:51,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670544591] [2022-04-05 09:52:51,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:51,620 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:51,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:51,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:51,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:51,620 INFO L87 Difference]: Start difference. First operand 794 states and 1255 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:53,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:55,228 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:57,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:52:57,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:52:57,693 INFO L93 Difference]: Finished difference Result 1716 states and 2684 transitions. [2022-04-05 09:52:57,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:52:57,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-05 09:52:57,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:52:57,696 INFO L225 Difference]: With dead ends: 1716 [2022-04-05 09:52:57,696 INFO L226 Difference]: Without dead ends: 950 [2022-04-05 09:52:57,697 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:52:57,698 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 138 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 59 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:52:57,698 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 366 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 09:52:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-04-05 09:52:57,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 794. [2022-04-05 09:52:57,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5716096324461344) internal successors, (1240), 789 states have internal predecessors, (1240), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:57,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1244 transitions. [2022-04-05 09:52:57,710 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1244 transitions. Word has length 133 [2022-04-05 09:52:57,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:52:57,710 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1244 transitions. [2022-04-05 09:52:57,711 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:52:57,711 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1244 transitions. [2022-04-05 09:52:57,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-05 09:52:57,712 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:52:57,713 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:52:57,713 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 09:52:57,713 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:52:57,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:52:57,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1575731045, now seen corresponding path program 1 times [2022-04-05 09:52:57,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:52:57,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83227431] [2022-04-05 09:52:57,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:52:57,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:52:57,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:52:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:52:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:52:57,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:52:57,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83227431] [2022-04-05 09:52:57,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83227431] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:52:57,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:52:57,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:52:57,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629257239] [2022-04-05 09:52:57,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:52:57,810 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:52:57,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:52:57,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:52:57,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:52:57,810 INFO L87 Difference]: Start difference. First operand 794 states and 1244 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:00,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:02,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:02,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:02,671 INFO L93 Difference]: Finished difference Result 1646 states and 2567 transitions. [2022-04-05 09:53:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:02,671 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-05 09:53:02,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:02,673 INFO L225 Difference]: With dead ends: 1646 [2022-04-05 09:53:02,674 INFO L226 Difference]: Without dead ends: 880 [2022-04-05 09:53:02,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:02,675 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 87 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:02,675 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 493 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 506 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-04-05 09:53:02,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-04-05 09:53:02,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 794. [2022-04-05 09:53:02,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5690747782002534) internal successors, (1238), 789 states have internal predecessors, (1238), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:02,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1242 transitions. [2022-04-05 09:53:02,686 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1242 transitions. Word has length 135 [2022-04-05 09:53:02,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:02,686 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1242 transitions. [2022-04-05 09:53:02,686 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:02,687 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1242 transitions. [2022-04-05 09:53:02,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-04-05 09:53:02,688 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:02,688 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:02,688 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 09:53:02,688 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:02,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:02,688 INFO L85 PathProgramCache]: Analyzing trace with hash 278614492, now seen corresponding path program 1 times [2022-04-05 09:53:02,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:02,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815531860] [2022-04-05 09:53:02,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:02,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:53:02,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:02,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815531860] [2022-04-05 09:53:02,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815531860] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:02,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:02,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:02,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738036159] [2022-04-05 09:53:02,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:02,775 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:02,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:02,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:02,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:02,775 INFO L87 Difference]: Start difference. First operand 794 states and 1242 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:04,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:06,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:08,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:08,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:08,558 INFO L93 Difference]: Finished difference Result 1696 states and 2632 transitions. [2022-04-05 09:53:08,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:08,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 135 [2022-04-05 09:53:08,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:08,561 INFO L225 Difference]: With dead ends: 1696 [2022-04-05 09:53:08,561 INFO L226 Difference]: Without dead ends: 930 [2022-04-05 09:53:08,562 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:08,563 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 134 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 58 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:08,563 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 368 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 09:53:08,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2022-04-05 09:53:08,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 794. [2022-04-05 09:53:08,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5551330798479088) internal successors, (1227), 789 states have internal predecessors, (1227), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1231 transitions. [2022-04-05 09:53:08,583 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1231 transitions. Word has length 135 [2022-04-05 09:53:08,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:08,583 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1231 transitions. [2022-04-05 09:53:08,583 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:08,584 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1231 transitions. [2022-04-05 09:53:08,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-05 09:53:08,585 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:08,585 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:08,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 09:53:08,585 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash 173200331, now seen corresponding path program 1 times [2022-04-05 09:53:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:08,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493811763] [2022-04-05 09:53:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:08,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:08,690 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:53:08,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:08,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493811763] [2022-04-05 09:53:08,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493811763] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:08,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:08,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:08,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716669647] [2022-04-05 09:53:08,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:08,691 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:08,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:08,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:08,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:08,691 INFO L87 Difference]: Start difference. First operand 794 states and 1231 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:09,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:12,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:14,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:14,750 INFO L93 Difference]: Finished difference Result 1646 states and 2541 transitions. [2022-04-05 09:53:14,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:14,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-05 09:53:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:14,753 INFO L225 Difference]: With dead ends: 1646 [2022-04-05 09:53:14,753 INFO L226 Difference]: Without dead ends: 880 [2022-04-05 09:53:14,754 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:14,754 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 77 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:14,754 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 505 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 511 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 09:53:14,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-04-05 09:53:14,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 794. [2022-04-05 09:53:14,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 789 states have (on average 1.5525982256020279) internal successors, (1225), 789 states have internal predecessors, (1225), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:14,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1229 transitions. [2022-04-05 09:53:14,766 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1229 transitions. Word has length 139 [2022-04-05 09:53:14,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:14,766 INFO L478 AbstractCegarLoop]: Abstraction has 794 states and 1229 transitions. [2022-04-05 09:53:14,766 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:14,766 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1229 transitions. [2022-04-05 09:53:14,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-04-05 09:53:14,767 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:14,767 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:14,767 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 09:53:14,768 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:14,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:14,768 INFO L85 PathProgramCache]: Analyzing trace with hash -797090676, now seen corresponding path program 1 times [2022-04-05 09:53:14,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:14,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052949621] [2022-04-05 09:53:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:14,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:14,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 09:53:14,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:14,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052949621] [2022-04-05 09:53:14,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052949621] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:14,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:14,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:14,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059137293] [2022-04-05 09:53:14,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:14,866 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:14,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:14,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:14,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:14,867 INFO L87 Difference]: Start difference. First operand 794 states and 1229 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:16,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:18,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:20,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:20,994 INFO L93 Difference]: Finished difference Result 1660 states and 2567 transitions. [2022-04-05 09:53:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 139 [2022-04-05 09:53:20,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:20,997 INFO L225 Difference]: With dead ends: 1660 [2022-04-05 09:53:20,997 INFO L226 Difference]: Without dead ends: 894 [2022-04-05 09:53:20,998 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:20,998 INFO L913 BasicCegarLoop]: 240 mSDtfsCounter, 36 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:20,998 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 589 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 09:53:20,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2022-04-05 09:53:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 846. [2022-04-05 09:53:21,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 846 states, 841 states have (on average 1.5517241379310345) internal successors, (1305), 841 states have internal predecessors, (1305), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:21,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1309 transitions. [2022-04-05 09:53:21,010 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1309 transitions. Word has length 139 [2022-04-05 09:53:21,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:21,011 INFO L478 AbstractCegarLoop]: Abstraction has 846 states and 1309 transitions. [2022-04-05 09:53:21,011 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1309 transitions. [2022-04-05 09:53:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-04-05 09:53:21,012 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:21,012 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:21,012 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 09:53:21,012 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:21,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:21,013 INFO L85 PathProgramCache]: Analyzing trace with hash 571689233, now seen corresponding path program 1 times [2022-04-05 09:53:21,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:21,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143625720] [2022-04-05 09:53:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:21,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:21,099 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:53:21,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:21,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143625720] [2022-04-05 09:53:21,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143625720] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:21,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:21,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:21,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612327413] [2022-04-05 09:53:21,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:21,100 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:21,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:21,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:21,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:21,101 INFO L87 Difference]: Start difference. First operand 846 states and 1309 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:23,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:26,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:27,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:27,096 INFO L93 Difference]: Finished difference Result 1884 states and 2904 transitions. [2022-04-05 09:53:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:27,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 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 142 [2022-04-05 09:53:27,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:27,100 INFO L225 Difference]: With dead ends: 1884 [2022-04-05 09:53:27,100 INFO L226 Difference]: Without dead ends: 1066 [2022-04-05 09:53:27,101 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:27,101 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 120 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 56 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:27,101 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 368 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 09:53:27,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2022-04-05 09:53:27,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 902. [2022-04-05 09:53:27,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.544035674470457) internal successors, (1385), 897 states have internal predecessors, (1385), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:27,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1389 transitions. [2022-04-05 09:53:27,114 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1389 transitions. Word has length 142 [2022-04-05 09:53:27,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:27,115 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1389 transitions. [2022-04-05 09:53:27,115 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:27,115 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1389 transitions. [2022-04-05 09:53:27,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-04-05 09:53:27,116 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:27,116 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:27,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 09:53:27,116 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:27,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:27,117 INFO L85 PathProgramCache]: Analyzing trace with hash -2124952577, now seen corresponding path program 1 times [2022-04-05 09:53:27,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:27,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586259273] [2022-04-05 09:53:27,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:27,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:27,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:27,201 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:53:27,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:27,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586259273] [2022-04-05 09:53:27,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586259273] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:27,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:27,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:27,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47994625] [2022-04-05 09:53:27,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:27,202 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:27,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:27,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:27,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:27,203 INFO L87 Difference]: Start difference. First operand 902 states and 1389 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:28,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:31,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:32,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:32,217 INFO L93 Difference]: Finished difference Result 1846 states and 2831 transitions. [2022-04-05 09:53:32,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:32,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-04-05 09:53:32,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:32,219 INFO L225 Difference]: With dead ends: 1846 [2022-04-05 09:53:32,219 INFO L226 Difference]: Without dead ends: 972 [2022-04-05 09:53:32,220 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:32,221 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 61 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:32,221 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 523 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-04-05 09:53:32,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2022-04-05 09:53:32,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 902. [2022-04-05 09:53:32,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.5418060200668897) internal successors, (1383), 897 states have internal predecessors, (1383), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:32,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1387 transitions. [2022-04-05 09:53:32,234 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1387 transitions. Word has length 143 [2022-04-05 09:53:32,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:32,234 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1387 transitions. [2022-04-05 09:53:32,235 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:32,235 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1387 transitions. [2022-04-05 09:53:32,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-05 09:53:32,236 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:32,236 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:32,236 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 09:53:32,236 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:32,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:32,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1680520422, now seen corresponding path program 1 times [2022-04-05 09:53:32,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:32,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257908626] [2022-04-05 09:53:32,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:32,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 09:53:32,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:32,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257908626] [2022-04-05 09:53:32,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257908626] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:32,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:32,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:32,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661616697] [2022-04-05 09:53:32,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:32,320 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:32,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:32,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:32,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:32,321 INFO L87 Difference]: Start difference. First operand 902 states and 1387 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:36,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:36,642 INFO L93 Difference]: Finished difference Result 1826 states and 2803 transitions. [2022-04-05 09:53:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-05 09:53:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:36,645 INFO L225 Difference]: With dead ends: 1826 [2022-04-05 09:53:36,645 INFO L226 Difference]: Without dead ends: 952 [2022-04-05 09:53:36,646 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:36,646 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 72 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:36,648 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 509 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 09:53:36,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-04-05 09:53:36,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 902. [2022-04-05 09:53:36,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 902 states, 897 states have (on average 1.5395763656633221) internal successors, (1381), 897 states have internal predecessors, (1381), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:36,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1385 transitions. [2022-04-05 09:53:36,661 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1385 transitions. Word has length 144 [2022-04-05 09:53:36,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:36,662 INFO L478 AbstractCegarLoop]: Abstraction has 902 states and 1385 transitions. [2022-04-05 09:53:36,662 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:36,662 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1385 transitions. [2022-04-05 09:53:36,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-05 09:53:36,663 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:36,663 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:36,663 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 09:53:36,663 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:36,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:36,665 INFO L85 PathProgramCache]: Analyzing trace with hash 780500646, now seen corresponding path program 1 times [2022-04-05 09:53:36,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:36,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488095920] [2022-04-05 09:53:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:36,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:36,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:36,782 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:53:36,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:36,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488095920] [2022-04-05 09:53:36,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488095920] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:36,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:36,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:36,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952809717] [2022-04-05 09:53:36,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:36,782 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:36,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:36,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:36,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:36,783 INFO L87 Difference]: Start difference. First operand 902 states and 1385 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:38,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:39,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:39,217 INFO L93 Difference]: Finished difference Result 1996 states and 3054 transitions. [2022-04-05 09:53:39,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:39,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-05 09:53:39,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:39,220 INFO L225 Difference]: With dead ends: 1996 [2022-04-05 09:53:39,220 INFO L226 Difference]: Without dead ends: 1122 [2022-04-05 09:53:39,221 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:39,221 INFO L913 BasicCegarLoop]: 132 mSDtfsCounter, 118 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 52 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:39,221 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 368 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 482 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:53:39,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-04-05 09:53:39,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 962. [2022-04-05 09:53:39,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 957 states have (on average 1.5329153605015673) internal successors, (1467), 957 states have internal predecessors, (1467), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:39,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1471 transitions. [2022-04-05 09:53:39,237 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1471 transitions. Word has length 144 [2022-04-05 09:53:39,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:39,237 INFO L478 AbstractCegarLoop]: Abstraction has 962 states and 1471 transitions. [2022-04-05 09:53:39,237 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:39,237 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1471 transitions. [2022-04-05 09:53:39,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-04-05 09:53:39,238 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:39,238 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:39,238 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 09:53:39,239 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:39,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:39,239 INFO L85 PathProgramCache]: Analyzing trace with hash 2086081273, now seen corresponding path program 1 times [2022-04-05 09:53:39,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:39,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663262343] [2022-04-05 09:53:39,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:39,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:39,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:39,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-04-05 09:53:39,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:39,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663262343] [2022-04-05 09:53:39,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663262343] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:39,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:39,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:39,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690780309] [2022-04-05 09:53:39,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:39,342 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:39,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:39,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:39,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:39,343 INFO L87 Difference]: Start difference. First operand 962 states and 1471 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:42,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:44,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:44,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:44,842 INFO L93 Difference]: Finished difference Result 1532 states and 2335 transitions. [2022-04-05 09:53:44,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:44,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 144 [2022-04-05 09:53:44,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:44,844 INFO L225 Difference]: With dead ends: 1532 [2022-04-05 09:53:44,844 INFO L226 Difference]: Without dead ends: 598 [2022-04-05 09:53:44,845 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:44,845 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 131 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:44,845 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 370 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 09:53:44,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-04-05 09:53:44,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-04-05 09:53:44,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4981203007518797) internal successors, (797), 532 states have internal predecessors, (797), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:44,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 801 transitions. [2022-04-05 09:53:44,852 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 801 transitions. Word has length 144 [2022-04-05 09:53:44,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:44,853 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 801 transitions. [2022-04-05 09:53:44,853 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:44,853 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 801 transitions. [2022-04-05 09:53:44,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 09:53:44,854 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:44,854 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:44,854 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 09:53:44,854 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:44,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:44,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2040378645, now seen corresponding path program 1 times [2022-04-05 09:53:44,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:44,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878670537] [2022-04-05 09:53:44,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:44,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:44,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:53:44,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:44,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878670537] [2022-04-05 09:53:44,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878670537] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:44,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:44,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:44,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362630776] [2022-04-05 09:53:44,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:44,955 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:44,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:44,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:44,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:44,957 INFO L87 Difference]: Start difference. First operand 537 states and 801 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:47,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:48,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:49,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:49,719 INFO L93 Difference]: Finished difference Result 1107 states and 1654 transitions. [2022-04-05 09:53:49,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:49,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 09:53:49,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:49,721 INFO L225 Difference]: With dead ends: 1107 [2022-04-05 09:53:49,721 INFO L226 Difference]: Without dead ends: 598 [2022-04-05 09:53:49,721 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:49,722 INFO L913 BasicCegarLoop]: 136 mSDtfsCounter, 115 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 50 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:49,722 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 376 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-04-05 09:53:49,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-04-05 09:53:49,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-04-05 09:53:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4849624060150375) internal successors, (790), 532 states have internal predecessors, (790), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 794 transitions. [2022-04-05 09:53:49,732 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 794 transitions. Word has length 145 [2022-04-05 09:53:49,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:49,732 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 794 transitions. [2022-04-05 09:53:49,733 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 794 transitions. [2022-04-05 09:53:49,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 09:53:49,733 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:49,734 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:49,734 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 09:53:49,734 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:49,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:49,734 INFO L85 PathProgramCache]: Analyzing trace with hash -390187374, now seen corresponding path program 1 times [2022-04-05 09:53:49,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:49,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646505906] [2022-04-05 09:53:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:49,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:49,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:53:49,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:49,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646505906] [2022-04-05 09:53:49,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646505906] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:49,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:49,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:49,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910584077] [2022-04-05 09:53:49,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:49,823 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:49,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:49,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:49,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:49,823 INFO L87 Difference]: Start difference. First operand 537 states and 794 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:51,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:52,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:54,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:53:55,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:53:55,775 INFO L93 Difference]: Finished difference Result 1107 states and 1640 transitions. [2022-04-05 09:53:55,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:53:55,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 145 [2022-04-05 09:53:55,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:53:55,778 INFO L225 Difference]: With dead ends: 1107 [2022-04-05 09:53:55,778 INFO L226 Difference]: Without dead ends: 598 [2022-04-05 09:53:55,778 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:53:55,779 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 110 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 53 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:53:55,779 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 370 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 09:53:55,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-04-05 09:53:55,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-04-05 09:53:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4755639097744362) internal successors, (785), 532 states have internal predecessors, (785), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 789 transitions. [2022-04-05 09:53:55,786 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 789 transitions. Word has length 145 [2022-04-05 09:53:55,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:53:55,786 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 789 transitions. [2022-04-05 09:53:55,786 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:55,786 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 789 transitions. [2022-04-05 09:53:55,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 09:53:55,787 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:53:55,787 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:53:55,787 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 09:53:55,787 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:53:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:53:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1500160743, now seen corresponding path program 1 times [2022-04-05 09:53:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:53:55,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48751419] [2022-04-05 09:53:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:53:55,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:53:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:55,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:53:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:53:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:53:55,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:53:55,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48751419] [2022-04-05 09:53:55,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48751419] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:53:55,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:53:55,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:53:55,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576202242] [2022-04-05 09:53:55,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:53:55,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:53:55,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:53:55,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:53:55,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:53:55,897 INFO L87 Difference]: Start difference. First operand 537 states and 789 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:53:58,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:00,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:02,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:02,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:02,555 INFO L93 Difference]: Finished difference Result 1107 states and 1630 transitions. [2022-04-05 09:54:02,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:02,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 146 [2022-04-05 09:54:02,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:02,557 INFO L225 Difference]: With dead ends: 1107 [2022-04-05 09:54:02,557 INFO L226 Difference]: Without dead ends: 598 [2022-04-05 09:54:02,558 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:02,558 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 113 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:02,559 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 370 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 461 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 09:54:02,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-04-05 09:54:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 537. [2022-04-05 09:54:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.462406015037594) internal successors, (778), 532 states have internal predecessors, (778), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:02,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 782 transitions. [2022-04-05 09:54:02,566 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 782 transitions. Word has length 146 [2022-04-05 09:54:02,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:02,566 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 782 transitions. [2022-04-05 09:54:02,566 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 782 transitions. [2022-04-05 09:54:02,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-05 09:54:02,567 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:02,567 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:02,568 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 09:54:02,568 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:02,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:02,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1615062166, now seen corresponding path program 1 times [2022-04-05 09:54:02,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:02,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991262080] [2022-04-05 09:54:02,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:02,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:02,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:54:02,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:02,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991262080] [2022-04-05 09:54:02,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991262080] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:02,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:02,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:02,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105682820] [2022-04-05 09:54:02,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:02,668 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:02,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:02,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:02,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:02,668 INFO L87 Difference]: Start difference. First operand 537 states and 782 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:03,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:05,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:07,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:08,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:08,710 INFO L93 Difference]: Finished difference Result 1069 states and 1561 transitions. [2022-04-05 09:54:08,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:08,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-05 09:54:08,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:08,712 INFO L225 Difference]: With dead ends: 1069 [2022-04-05 09:54:08,712 INFO L226 Difference]: Without dead ends: 560 [2022-04-05 09:54:08,713 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:08,713 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 43 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:08,713 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 519 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 09:54:08,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-04-05 09:54:08,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 537. [2022-04-05 09:54:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4605263157894737) internal successors, (777), 532 states have internal predecessors, (777), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:08,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 781 transitions. [2022-04-05 09:54:08,721 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 781 transitions. Word has length 148 [2022-04-05 09:54:08,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:08,721 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 781 transitions. [2022-04-05 09:54:08,721 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:08,721 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 781 transitions. [2022-04-05 09:54:08,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-05 09:54:08,722 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:08,722 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:08,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 09:54:08,722 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:08,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:08,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1128973103, now seen corresponding path program 1 times [2022-04-05 09:54:08,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:08,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701419677] [2022-04-05 09:54:08,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:08,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:08,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:08,816 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:54:08,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:08,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701419677] [2022-04-05 09:54:08,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701419677] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:08,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:08,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:08,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592322135] [2022-04-05 09:54:08,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:08,817 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:08,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:08,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:08,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:08,817 INFO L87 Difference]: Start difference. First operand 537 states and 781 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:11,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:12,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:13,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:13,270 INFO L93 Difference]: Finished difference Result 1065 states and 1554 transitions. [2022-04-05 09:54:13,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:13,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-05 09:54:13,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:13,272 INFO L225 Difference]: With dead ends: 1065 [2022-04-05 09:54:13,272 INFO L226 Difference]: Without dead ends: 556 [2022-04-05 09:54:13,273 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:13,273 INFO L913 BasicCegarLoop]: 206 mSDtfsCounter, 38 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:13,273 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 523 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 453 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:54:13,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2022-04-05 09:54:13,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 537. [2022-04-05 09:54:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 532 states have (on average 1.4586466165413534) internal successors, (776), 532 states have internal predecessors, (776), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:13,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 780 transitions. [2022-04-05 09:54:13,291 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 780 transitions. Word has length 149 [2022-04-05 09:54:13,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:13,291 INFO L478 AbstractCegarLoop]: Abstraction has 537 states and 780 transitions. [2022-04-05 09:54:13,291 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:13,291 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 780 transitions. [2022-04-05 09:54:13,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-05 09:54:13,292 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:13,292 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-04-05 09:54:13,292 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 09:54:13,292 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:13,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:13,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1559975034, now seen corresponding path program 1 times [2022-04-05 09:54:13,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:13,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035840807] [2022-04-05 09:54:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:13,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:13,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:13,394 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:54:13,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:13,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035840807] [2022-04-05 09:54:13,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035840807] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:13,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:13,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:13,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501436787] [2022-04-05 09:54:13,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:13,394 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:13,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:13,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:13,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:13,395 INFO L87 Difference]: Start difference. First operand 537 states and 780 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:15,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:16,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:17,893 INFO L93 Difference]: Finished difference Result 1149 states and 1675 transitions. [2022-04-05 09:54:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:17,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 149 [2022-04-05 09:54:17,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:17,895 INFO L225 Difference]: With dead ends: 1149 [2022-04-05 09:54:17,895 INFO L226 Difference]: Without dead ends: 640 [2022-04-05 09:54:17,895 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:17,896 INFO L913 BasicCegarLoop]: 133 mSDtfsCounter, 104 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:17,896 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 370 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-04-05 09:54:17,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2022-04-05 09:54:17,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 572. [2022-04-05 09:54:17,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4532627865961198) internal successors, (824), 567 states have internal predecessors, (824), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:17,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 828 transitions. [2022-04-05 09:54:17,904 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 828 transitions. Word has length 149 [2022-04-05 09:54:17,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:17,904 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 828 transitions. [2022-04-05 09:54:17,904 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:17,904 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 828 transitions. [2022-04-05 09:54:17,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-04-05 09:54:17,905 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:17,905 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:17,905 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 09:54:17,905 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:17,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash -933634450, now seen corresponding path program 1 times [2022-04-05 09:54:17,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:17,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277415584] [2022-04-05 09:54:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:17,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:18,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:18,015 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-04-05 09:54:18,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:18,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277415584] [2022-04-05 09:54:18,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277415584] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:18,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:18,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:18,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973035681] [2022-04-05 09:54:18,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:18,016 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:18,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:18,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:18,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:18,017 INFO L87 Difference]: Start difference. First operand 572 states and 828 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:20,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:23,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:23,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:23,423 INFO L93 Difference]: Finished difference Result 1133 states and 1646 transitions. [2022-04-05 09:54:23,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:23,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 150 [2022-04-05 09:54:23,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:23,425 INFO L225 Difference]: With dead ends: 1133 [2022-04-05 09:54:23,425 INFO L226 Difference]: Without dead ends: 589 [2022-04-05 09:54:23,425 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:23,426 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 33 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:23,426 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 525 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 09:54:23,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-04-05 09:54:23,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 572. [2022-04-05 09:54:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4514991181657848) internal successors, (823), 567 states have internal predecessors, (823), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 827 transitions. [2022-04-05 09:54:23,433 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 827 transitions. Word has length 150 [2022-04-05 09:54:23,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:23,433 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 827 transitions. [2022-04-05 09:54:23,434 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:23,434 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 827 transitions. [2022-04-05 09:54:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-04-05 09:54:23,434 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:23,435 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-04-05 09:54:23,435 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 09:54:23,435 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:23,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:23,435 INFO L85 PathProgramCache]: Analyzing trace with hash -2006253839, now seen corresponding path program 1 times [2022-04-05 09:54:23,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:23,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795267215] [2022-04-05 09:54:23,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:23,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:23,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:23,522 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-04-05 09:54:23,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:23,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795267215] [2022-04-05 09:54:23,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795267215] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:23,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:23,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:23,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966523514] [2022-04-05 09:54:23,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:23,522 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:23,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:23,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:23,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:23,523 INFO L87 Difference]: Start difference. First operand 572 states and 827 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:26,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:28,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:28,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:28,497 INFO L93 Difference]: Finished difference Result 1130 states and 1641 transitions. [2022-04-05 09:54:28,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:28,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 152 [2022-04-05 09:54:28,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:28,499 INFO L225 Difference]: With dead ends: 1130 [2022-04-05 09:54:28,499 INFO L226 Difference]: Without dead ends: 586 [2022-04-05 09:54:28,499 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:28,500 INFO L913 BasicCegarLoop]: 230 mSDtfsCounter, 38 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:28,500 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 569 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-04-05 09:54:28,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-04-05 09:54:28,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 572. [2022-04-05 09:54:28,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4497354497354498) internal successors, (822), 567 states have internal predecessors, (822), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:28,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 826 transitions. [2022-04-05 09:54:28,508 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 826 transitions. Word has length 152 [2022-04-05 09:54:28,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:28,508 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 826 transitions. [2022-04-05 09:54:28,508 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:28,508 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 826 transitions. [2022-04-05 09:54:28,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-05 09:54:28,509 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:28,509 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:28,509 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-04-05 09:54:28,509 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:28,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:28,510 INFO L85 PathProgramCache]: Analyzing trace with hash -548960133, now seen corresponding path program 1 times [2022-04-05 09:54:28,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:28,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271282387] [2022-04-05 09:54:28,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:28,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:28,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 09:54:28,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:28,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271282387] [2022-04-05 09:54:28,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271282387] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:28,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:28,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:28,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667155183] [2022-04-05 09:54:28,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:28,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:28,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:28,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:28,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:28,603 INFO L87 Difference]: Start difference. First operand 572 states and 826 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) [2022-04-05 09:54:30,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:30,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:30,993 INFO L93 Difference]: Finished difference Result 1151 states and 1667 transitions. [2022-04-05 09:54:30,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:30,993 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 158 [2022-04-05 09:54:30,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:30,995 INFO L225 Difference]: With dead ends: 1151 [2022-04-05 09:54:30,995 INFO L226 Difference]: Without dead ends: 607 [2022-04-05 09:54:30,996 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:30,996 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 65 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:30,996 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 544 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 508 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:54:30,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-04-05 09:54:31,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 572. [2022-04-05 09:54:31,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4479717813051147) internal successors, (821), 567 states have internal predecessors, (821), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:31,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 825 transitions. [2022-04-05 09:54:31,004 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 825 transitions. Word has length 158 [2022-04-05 09:54:31,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:31,004 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 825 transitions. [2022-04-05 09:54:31,004 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) [2022-04-05 09:54:31,004 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 825 transitions. [2022-04-05 09:54:31,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-04-05 09:54:31,005 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:31,005 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:31,005 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-05 09:54:31,005 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:31,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:31,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1599750346, now seen corresponding path program 1 times [2022-04-05 09:54:31,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:31,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470305295] [2022-04-05 09:54:31,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:31,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:31,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:31,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:31,106 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 09:54:31,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:31,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470305295] [2022-04-05 09:54:31,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470305295] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:31,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:31,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:31,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244021783] [2022-04-05 09:54:31,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:31,107 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:31,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:31,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:31,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:31,108 INFO L87 Difference]: Start difference. First operand 572 states and 825 transitions. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:32,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:34,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:36,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:38,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:38,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:38,406 INFO L93 Difference]: Finished difference Result 1149 states and 1663 transitions. [2022-04-05 09:54:38,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:38,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 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 164 [2022-04-05 09:54:38,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:38,407 INFO L225 Difference]: With dead ends: 1149 [2022-04-05 09:54:38,407 INFO L226 Difference]: Without dead ends: 605 [2022-04-05 09:54:38,408 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:38,408 INFO L913 BasicCegarLoop]: 219 mSDtfsCounter, 57 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:38,408 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 546 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-04-05 09:54:38,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2022-04-05 09:54:38,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 572. [2022-04-05 09:54:38,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 567 states have (on average 1.4462081128747795) internal successors, (820), 567 states have internal predecessors, (820), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 824 transitions. [2022-04-05 09:54:38,416 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 824 transitions. Word has length 164 [2022-04-05 09:54:38,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:38,416 INFO L478 AbstractCegarLoop]: Abstraction has 572 states and 824 transitions. [2022-04-05 09:54:38,416 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 4 states have internal predecessors, (134), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:38,416 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 824 transitions. [2022-04-05 09:54:38,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-04-05 09:54:38,417 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:38,417 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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] [2022-04-05 09:54:38,417 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-04-05 09:54:38,417 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:38,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:38,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1310716344, now seen corresponding path program 1 times [2022-04-05 09:54:38,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:38,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063758784] [2022-04-05 09:54:38,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:38,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:38,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:38,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:38,552 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2022-04-05 09:54:38,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:38,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063758784] [2022-04-05 09:54:38,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063758784] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:38,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:38,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:38,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201292894] [2022-04-05 09:54:38,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:38,553 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:38,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:38,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:38,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:38,554 INFO L87 Difference]: Start difference. First operand 572 states and 824 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) [2022-04-05 09:54:41,877 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:43,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:44,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:44,292 INFO L93 Difference]: Finished difference Result 1255 states and 1817 transitions. [2022-04-05 09:54:44,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:44,293 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 167 [2022-04-05 09:54:44,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:44,294 INFO L225 Difference]: With dead ends: 1255 [2022-04-05 09:54:44,294 INFO L226 Difference]: Without dead ends: 711 [2022-04-05 09:54:44,294 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:44,295 INFO L913 BasicCegarLoop]: 139 mSDtfsCounter, 106 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:44,295 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 382 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 09:54:44,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-04-05 09:54:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 636. [2022-04-05 09:54:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.4421553090332806) internal successors, (910), 631 states have internal predecessors, (910), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:44,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 914 transitions. [2022-04-05 09:54:44,304 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 914 transitions. Word has length 167 [2022-04-05 09:54:44,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:44,304 INFO L478 AbstractCegarLoop]: Abstraction has 636 states and 914 transitions. [2022-04-05 09:54:44,304 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) [2022-04-05 09:54:44,304 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 914 transitions. [2022-04-05 09:54:44,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-04-05 09:54:44,305 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:44,305 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:44,305 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-05 09:54:44,305 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:44,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:44,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1892544354, now seen corresponding path program 1 times [2022-04-05 09:54:44,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:44,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080454048] [2022-04-05 09:54:44,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:44,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:44,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-04-05 09:54:44,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:44,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080454048] [2022-04-05 09:54:44,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080454048] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:44,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:44,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:44,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497521511] [2022-04-05 09:54:44,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:44,395 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:44,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:44,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:44,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:44,396 INFO L87 Difference]: Start difference. First operand 636 states and 914 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) [2022-04-05 09:54:46,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:47,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:48,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:48,930 INFO L93 Difference]: Finished difference Result 1303 states and 1878 transitions. [2022-04-05 09:54:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:54:48,930 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 171 [2022-04-05 09:54:48,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:48,931 INFO L225 Difference]: With dead ends: 1303 [2022-04-05 09:54:48,932 INFO L226 Difference]: Without dead ends: 695 [2022-04-05 09:54:48,932 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:54:48,933 INFO L913 BasicCegarLoop]: 125 mSDtfsCounter, 122 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:48,933 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 354 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 449 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-05 09:54:48,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2022-04-05 09:54:48,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 636. [2022-04-05 09:54:48,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.427892234548336) internal successors, (901), 631 states have internal predecessors, (901), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:48,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 905 transitions. [2022-04-05 09:54:48,941 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 905 transitions. Word has length 171 [2022-04-05 09:54:48,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:48,941 INFO L478 AbstractCegarLoop]: Abstraction has 636 states and 905 transitions. [2022-04-05 09:54:48,941 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) [2022-04-05 09:54:48,941 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 905 transitions. [2022-04-05 09:54:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-04-05 09:54:48,942 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:48,942 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:48,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-05 09:54:48,943 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:48,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:48,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1055786399, now seen corresponding path program 1 times [2022-04-05 09:54:48,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:48,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197863230] [2022-04-05 09:54:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:48,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:49,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-04-05 09:54:49,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:49,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197863230] [2022-04-05 09:54:49,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197863230] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:49,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:49,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:54:49,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211749950] [2022-04-05 09:54:49,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:49,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:54:49,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:49,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:54:49,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:54:49,034 INFO L87 Difference]: Start difference. First operand 636 states and 905 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:50,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:52,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:53,484 INFO L93 Difference]: Finished difference Result 1818 states and 2608 transitions. [2022-04-05 09:54:53,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:54:53,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 172 [2022-04-05 09:54:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:53,486 INFO L225 Difference]: With dead ends: 1818 [2022-04-05 09:54:53,486 INFO L226 Difference]: Without dead ends: 1210 [2022-04-05 09:54:53,486 INFO L912 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 [2022-04-05 09:54:53,487 INFO L913 BasicCegarLoop]: 372 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:53,487 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 566 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-04-05 09:54:53,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2022-04-05 09:54:53,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2022-04-05 09:54:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 1205 states have (on average 1.4307053941908714) internal successors, (1724), 1205 states have internal predecessors, (1724), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1728 transitions. [2022-04-05 09:54:53,502 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1728 transitions. Word has length 172 [2022-04-05 09:54:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:53,502 INFO L478 AbstractCegarLoop]: Abstraction has 1210 states and 1728 transitions. [2022-04-05 09:54:53,502 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:53,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1728 transitions. [2022-04-05 09:54:53,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-05 09:54:53,504 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:53,504 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:54:53,504 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-05 09:54:53,504 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:53,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash 434121896, now seen corresponding path program 1 times [2022-04-05 09:54:53,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:53,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280603523] [2022-04-05 09:54:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:53,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:53,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:53,593 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 09:54:53,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:53,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280603523] [2022-04-05 09:54:53,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280603523] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:53,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:53,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:54:53,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091056085] [2022-04-05 09:54:53,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:53,594 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:54:53,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:53,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:54:53,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:54:53,595 INFO L87 Difference]: Start difference. First operand 1210 states and 1728 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:54,690 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:56,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:58,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:54:59,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:54:59,041 INFO L93 Difference]: Finished difference Result 2934 states and 4208 transitions. [2022-04-05 09:54:59,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:54:59,042 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-05 09:54:59,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:54:59,044 INFO L225 Difference]: With dead ends: 2934 [2022-04-05 09:54:59,044 INFO L226 Difference]: Without dead ends: 1752 [2022-04-05 09:54:59,045 INFO L912 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 [2022-04-05 09:54:59,045 INFO L913 BasicCegarLoop]: 308 mSDtfsCounter, 136 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:54:59,046 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 502 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 339 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 09:54:59,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2022-04-05 09:54:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1752. [2022-04-05 09:54:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1747 states have (on average 1.4315970234688036) internal successors, (2501), 1747 states have internal predecessors, (2501), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:59,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2505 transitions. [2022-04-05 09:54:59,086 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2505 transitions. Word has length 173 [2022-04-05 09:54:59,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:54:59,086 INFO L478 AbstractCegarLoop]: Abstraction has 1752 states and 2505 transitions. [2022-04-05 09:54:59,086 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:54:59,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2505 transitions. [2022-04-05 09:54:59,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-05 09:54:59,088 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:54:59,088 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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] [2022-04-05 09:54:59,088 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-04-05 09:54:59,088 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:54:59,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:54:59,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1432094791, now seen corresponding path program 1 times [2022-04-05 09:54:59,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:54:59,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540570777] [2022-04-05 09:54:59,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:54:59,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:54:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:54:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:54:59,181 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2022-04-05 09:54:59,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:54:59,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540570777] [2022-04-05 09:54:59,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540570777] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:54:59,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:54:59,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:54:59,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65534784] [2022-04-05 09:54:59,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:54:59,182 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:54:59,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:54:59,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:54:59,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:54:59,183 INFO L87 Difference]: Start difference. First operand 1752 states and 2505 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:01,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:01,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:01,573 INFO L93 Difference]: Finished difference Result 3534 states and 5059 transitions. [2022-04-05 09:55:01,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:01,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-05 09:55:01,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:01,575 INFO L225 Difference]: With dead ends: 3534 [2022-04-05 09:55:01,576 INFO L226 Difference]: Without dead ends: 1810 [2022-04-05 09:55:01,577 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:01,577 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 36 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:01,578 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 582 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 462 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:55:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2022-04-05 09:55:01,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1752. [2022-04-05 09:55:01,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1747 states have (on average 1.4298797939324557) internal successors, (2498), 1747 states have internal predecessors, (2498), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:01,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2502 transitions. [2022-04-05 09:55:01,611 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2502 transitions. Word has length 173 [2022-04-05 09:55:01,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:01,611 INFO L478 AbstractCegarLoop]: Abstraction has 1752 states and 2502 transitions. [2022-04-05 09:55:01,611 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:01,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2502 transitions. [2022-04-05 09:55:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-04-05 09:55:01,613 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:01,613 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:01,613 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-05 09:55:01,613 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:01,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:01,613 INFO L85 PathProgramCache]: Analyzing trace with hash 201941755, now seen corresponding path program 1 times [2022-04-05 09:55:01,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:01,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420349186] [2022-04-05 09:55:01,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:01,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:01,698 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-04-05 09:55:01,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:01,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420349186] [2022-04-05 09:55:01,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420349186] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:01,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:01,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:55:01,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138018244] [2022-04-05 09:55:01,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:01,698 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:55:01,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:01,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:55:01,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:55:01,699 INFO L87 Difference]: Start difference. First operand 1752 states and 2502 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:04,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:06,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:07,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:07,048 INFO L93 Difference]: Finished difference Result 4009 states and 5743 transitions. [2022-04-05 09:55:07,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:55:07,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 174 [2022-04-05 09:55:07,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:07,052 INFO L225 Difference]: With dead ends: 4009 [2022-04-05 09:55:07,052 INFO L226 Difference]: Without dead ends: 2285 [2022-04-05 09:55:07,054 INFO L912 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 [2022-04-05 09:55:07,054 INFO L913 BasicCegarLoop]: 318 mSDtfsCounter, 138 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:07,054 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 512 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 09:55:07,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2022-04-05 09:55:07,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2285. [2022-04-05 09:55:07,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 2280 states have (on average 1.4307017543859648) internal successors, (3262), 2280 states have internal predecessors, (3262), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:07,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 3266 transitions. [2022-04-05 09:55:07,098 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 3266 transitions. Word has length 174 [2022-04-05 09:55:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:07,098 INFO L478 AbstractCegarLoop]: Abstraction has 2285 states and 3266 transitions. [2022-04-05 09:55:07,098 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 3 states have internal predecessors, (127), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:07,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 3266 transitions. [2022-04-05 09:55:07,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-04-05 09:55:07,101 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:07,101 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-04-05 09:55:07,101 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-04-05 09:55:07,101 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:07,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:07,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1885880363, now seen corresponding path program 1 times [2022-04-05 09:55:07,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:07,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988055925] [2022-04-05 09:55:07,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:07,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:07,211 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-04-05 09:55:07,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:07,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988055925] [2022-04-05 09:55:07,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988055925] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:07,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:07,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 09:55:07,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451643314] [2022-04-05 09:55:07,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:07,212 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:55:07,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:07,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:55:07,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 09:55:07,213 INFO L87 Difference]: Start difference. First operand 2285 states and 3266 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:08,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:09,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:09,763 INFO L93 Difference]: Finished difference Result 5121 states and 7336 transitions. [2022-04-05 09:55:09,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:55:09,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 246 [2022-04-05 09:55:09,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:09,768 INFO L225 Difference]: With dead ends: 5121 [2022-04-05 09:55:09,768 INFO L226 Difference]: Without dead ends: 2864 [2022-04-05 09:55:09,785 INFO L912 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 [2022-04-05 09:55:09,785 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 150 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:09,785 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 379 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 09:55:09,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2022-04-05 09:55:09,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2864. [2022-04-05 09:55:09,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2864 states, 2859 states have (on average 1.4326687653025534) internal successors, (4096), 2859 states have internal predecessors, (4096), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:09,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2864 states to 2864 states and 4100 transitions. [2022-04-05 09:55:09,818 INFO L78 Accepts]: Start accepts. Automaton has 2864 states and 4100 transitions. Word has length 246 [2022-04-05 09:55:09,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:09,819 INFO L478 AbstractCegarLoop]: Abstraction has 2864 states and 4100 transitions. [2022-04-05 09:55:09,819 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:09,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2864 states and 4100 transitions. [2022-04-05 09:55:09,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-04-05 09:55:09,822 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:09,822 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:09,822 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-05 09:55:09,822 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:09,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:09,823 INFO L85 PathProgramCache]: Analyzing trace with hash 522812222, now seen corresponding path program 1 times [2022-04-05 09:55:09,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:09,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508777750] [2022-04-05 09:55:09,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:09,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:09,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:09,945 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 482 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-04-05 09:55:09,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:09,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508777750] [2022-04-05 09:55:09,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508777750] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:09,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:09,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:09,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121695575] [2022-04-05 09:55:09,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:09,946 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:09,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:09,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:09,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:09,946 INFO L87 Difference]: Start difference. First operand 2864 states and 4100 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:12,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:14,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:15,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:16,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:16,232 INFO L93 Difference]: Finished difference Result 6051 states and 8653 transitions. [2022-04-05 09:55:16,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:16,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 297 [2022-04-05 09:55:16,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:16,236 INFO L225 Difference]: With dead ends: 6051 [2022-04-05 09:55:16,236 INFO L226 Difference]: Without dead ends: 3215 [2022-04-05 09:55:16,239 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:16,240 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 47 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:16,240 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 603 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 538 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 09:55:16,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2022-04-05 09:55:16,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3069. [2022-04-05 09:55:16,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 3064 states have (on average 1.431462140992167) internal successors, (4386), 3064 states have internal predecessors, (4386), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:16,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 4390 transitions. [2022-04-05 09:55:16,280 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 4390 transitions. Word has length 297 [2022-04-05 09:55:16,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:16,280 INFO L478 AbstractCegarLoop]: Abstraction has 3069 states and 4390 transitions. [2022-04-05 09:55:16,281 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:16,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 4390 transitions. [2022-04-05 09:55:16,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-04-05 09:55:16,284 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:16,284 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:16,285 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-05 09:55:16,285 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:16,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:16,285 INFO L85 PathProgramCache]: Analyzing trace with hash 307983069, now seen corresponding path program 1 times [2022-04-05 09:55:16,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:16,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816162759] [2022-04-05 09:55:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:16,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:16,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:16,614 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 508 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-04-05 09:55:16,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:16,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816162759] [2022-04-05 09:55:16,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816162759] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:16,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:16,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 09:55:16,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185116043] [2022-04-05 09:55:16,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:16,614 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 09:55:16,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:16,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 09:55:16,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-05 09:55:16,615 INFO L87 Difference]: Start difference. First operand 3069 states and 4390 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:18,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:20,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:22,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:24,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:25,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:27,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:27,871 INFO L93 Difference]: Finished difference Result 8858 states and 12700 transitions. [2022-04-05 09:55:27,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-05 09:55:27,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 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 297 [2022-04-05 09:55:27,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:27,879 INFO L225 Difference]: With dead ends: 8858 [2022-04-05 09:55:27,879 INFO L226 Difference]: Without dead ends: 5817 [2022-04-05 09:55:27,884 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-04-05 09:55:27,884 INFO L913 BasicCegarLoop]: 290 mSDtfsCounter, 434 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 104 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:27,884 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 1029 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1015 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2022-04-05 09:55:27,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2022-04-05 09:55:27,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 5499. [2022-04-05 09:55:27,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5494 states have (on average 1.4450309428467418) internal successors, (7939), 5494 states have internal predecessors, (7939), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 7943 transitions. [2022-04-05 09:55:27,972 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 7943 transitions. Word has length 297 [2022-04-05 09:55:27,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:27,972 INFO L478 AbstractCegarLoop]: Abstraction has 5499 states and 7943 transitions. [2022-04-05 09:55:27,972 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 7943 transitions. [2022-04-05 09:55:27,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-04-05 09:55:27,979 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:27,979 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-05 09:55:27,979 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-05 09:55:27,979 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:27,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:27,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1375885393, now seen corresponding path program 1 times [2022-04-05 09:55:27,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:27,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942600364] [2022-04-05 09:55:27,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:27,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:28,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:28,157 INFO L134 CoverageAnalysis]: Checked inductivity of 717 backedges. 484 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-04-05 09:55:28,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:28,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942600364] [2022-04-05 09:55:28,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942600364] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:28,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:28,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:28,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294230777] [2022-04-05 09:55:28,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:28,158 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:28,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:28,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:28,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:28,158 INFO L87 Difference]: Start difference. First operand 5499 states and 7943 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:30,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:31,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:31,591 INFO L93 Difference]: Finished difference Result 11247 states and 16219 transitions. [2022-04-05 09:55:31,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:31,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 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 298 [2022-04-05 09:55:31,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:31,598 INFO L225 Difference]: With dead ends: 11247 [2022-04-05 09:55:31,598 INFO L226 Difference]: Without dead ends: 5756 [2022-04-05 09:55:31,603 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:31,603 INFO L913 BasicCegarLoop]: 246 mSDtfsCounter, 46 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:31,603 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 601 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-05 09:55:31,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2022-04-05 09:55:31,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5484. [2022-04-05 09:55:31,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.444424164993612) internal successors, (7914), 5479 states have internal predecessors, (7914), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:31,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7918 transitions. [2022-04-05 09:55:31,681 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7918 transitions. Word has length 298 [2022-04-05 09:55:31,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:31,682 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7918 transitions. [2022-04-05 09:55:31,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7918 transitions. [2022-04-05 09:55:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-04-05 09:55:31,715 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:31,715 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:31,715 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-04-05 09:55:31,716 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:31,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:31,716 INFO L85 PathProgramCache]: Analyzing trace with hash -893601060, now seen corresponding path program 1 times [2022-04-05 09:55:31,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:31,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632030606] [2022-04-05 09:55:31,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:31,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:31,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 547 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-05 09:55:31,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:31,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632030606] [2022-04-05 09:55:31,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632030606] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:31,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:31,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443532686] [2022-04-05 09:55:31,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:31,861 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:31,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:31,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:31,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:31,861 INFO L87 Difference]: Start difference. First operand 5484 states and 7918 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:33,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:35,633 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:37,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:39,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:40,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:40,211 INFO L93 Difference]: Finished difference Result 11212 states and 16164 transitions. [2022-04-05 09:55:40,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:40,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 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 319 [2022-04-05 09:55:40,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:40,219 INFO L225 Difference]: With dead ends: 11212 [2022-04-05 09:55:40,219 INFO L226 Difference]: Without dead ends: 5756 [2022-04-05 09:55:40,245 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:40,246 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 60 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:40,246 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 599 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 518 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2022-04-05 09:55:40,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2022-04-05 09:55:40,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 5484. [2022-04-05 09:55:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.4425990144186895) internal successors, (7904), 5479 states have internal predecessors, (7904), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:40,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7908 transitions. [2022-04-05 09:55:40,327 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7908 transitions. Word has length 319 [2022-04-05 09:55:40,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:40,327 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7908 transitions. [2022-04-05 09:55:40,328 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 4 states have internal predecessors, (153), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7908 transitions. [2022-04-05 09:55:40,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-04-05 09:55:40,334 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:40,335 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-05 09:55:40,335 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-05 09:55:40,335 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:40,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash -801415708, now seen corresponding path program 1 times [2022-04-05 09:55:40,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:40,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802515816] [2022-04-05 09:55:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:40,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:40,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-05 09:55:40,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:40,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802515816] [2022-04-05 09:55:40,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802515816] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:40,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:40,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:40,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964218167] [2022-04-05 09:55:40,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:40,484 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:40,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:40,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:40,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:40,485 INFO L87 Difference]: Start difference. First operand 5484 states and 7908 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:41,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:42,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:44,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:44,436 INFO L93 Difference]: Finished difference Result 11172 states and 16090 transitions. [2022-04-05 09:55:44,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:44,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 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 320 [2022-04-05 09:55:44,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:44,452 INFO L225 Difference]: With dead ends: 11172 [2022-04-05 09:55:44,452 INFO L226 Difference]: Without dead ends: 5716 [2022-04-05 09:55:44,456 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:44,456 INFO L913 BasicCegarLoop]: 241 mSDtfsCounter, 54 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:44,456 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 591 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 09:55:44,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5716 states. [2022-04-05 09:55:44,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5716 to 5484. [2022-04-05 09:55:44,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.440773863843767) internal successors, (7894), 5479 states have internal predecessors, (7894), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:44,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7898 transitions. [2022-04-05 09:55:44,533 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7898 transitions. Word has length 320 [2022-04-05 09:55:44,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:44,555 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7898 transitions. [2022-04-05 09:55:44,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:44,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7898 transitions. [2022-04-05 09:55:44,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2022-04-05 09:55:44,561 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:44,561 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:55:44,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-05 09:55:44,562 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:44,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:44,563 INFO L85 PathProgramCache]: Analyzing trace with hash -439796824, now seen corresponding path program 1 times [2022-04-05 09:55:44,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:44,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148835344] [2022-04-05 09:55:44,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:44,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:44,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:44,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:44,825 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 557 proven. 99 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-05 09:55:44,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:44,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148835344] [2022-04-05 09:55:44,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148835344] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 09:55:44,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640026103] [2022-04-05 09:55:44,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:44,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:55:44,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:55:44,851 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) [2022-04-05 09:55:44,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-05 09:55:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:46,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 1678 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-05 09:55:46,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 09:55:46,289 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 31 treesize of output 19 [2022-04-05 09:55:46,309 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-04-05 09:55:46,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 78 [2022-04-05 09:55:46,315 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 [2022-04-05 09:55:46,325 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 [2022-04-05 09:55:46,426 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 [2022-04-05 09:55:46,456 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-05 09:55:46,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 21 [2022-04-05 09:55:46,464 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 [2022-04-05 09:55:46,529 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 [2022-04-05 09:55:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-04-05 09:55:46,635 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 09:55:46,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640026103] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:46,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 09:55:46,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-04-05 09:55:46,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134787753] [2022-04-05 09:55:46,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:46,637 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:55:46,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:46,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:55:46,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-04-05 09:55:46,637 INFO L87 Difference]: Start difference. First operand 5484 states and 7898 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:47,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:47,846 INFO L93 Difference]: Finished difference Result 11151 states and 16044 transitions. [2022-04-05 09:55:47,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:55:47,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 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 323 [2022-04-05 09:55:47,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:47,853 INFO L225 Difference]: With dead ends: 11151 [2022-04-05 09:55:47,853 INFO L226 Difference]: Without dead ends: 5695 [2022-04-05 09:55:47,859 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 09:55:47,859 INFO L913 BasicCegarLoop]: 247 mSDtfsCounter, 49 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:47,860 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 601 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 09:55:47,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2022-04-05 09:55:47,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 5539. [2022-04-05 09:55:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5539 states, 5534 states have (on average 1.440007228044814) internal successors, (7969), 5534 states have internal predecessors, (7969), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 7973 transitions. [2022-04-05 09:55:47,954 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 7973 transitions. Word has length 323 [2022-04-05 09:55:47,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:47,954 INFO L478 AbstractCegarLoop]: Abstraction has 5539 states and 7973 transitions. [2022-04-05 09:55:47,954 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:47,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 7973 transitions. [2022-04-05 09:55:47,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2022-04-05 09:55:47,960 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:47,961 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-05 09:55:47,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-05 09:55:48,163 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:55:48,165 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:48,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:48,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1151994747, now seen corresponding path program 1 times [2022-04-05 09:55:48,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:48,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488596696] [2022-04-05 09:55:48,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:48,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:48,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:48,336 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-04-05 09:55:48,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:48,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488596696] [2022-04-05 09:55:48,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488596696] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:55:48,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:55:48,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:55:48,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281008894] [2022-04-05 09:55:48,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:55:48,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:55:48,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:55:48,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:55:48,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:55:48,337 INFO L87 Difference]: Start difference. First operand 5539 states and 7973 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:51,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:53,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:55:54,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:55:54,160 INFO L93 Difference]: Finished difference Result 11101 states and 15984 transitions. [2022-04-05 09:55:54,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:55:54,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 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 324 [2022-04-05 09:55:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:55:54,167 INFO L225 Difference]: With dead ends: 11101 [2022-04-05 09:55:54,167 INFO L226 Difference]: Without dead ends: 5590 [2022-04-05 09:55:54,173 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:55:54,173 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 38 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 09:55:54,173 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 582 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 468 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 09:55:54,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5590 states. [2022-04-05 09:55:54,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5590 to 5484. [2022-04-05 09:55:54,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5479 states have (on average 1.4398612885563058) internal successors, (7889), 5479 states have internal predecessors, (7889), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7893 transitions. [2022-04-05 09:55:54,261 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7893 transitions. Word has length 324 [2022-04-05 09:55:54,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:55:54,261 INFO L478 AbstractCegarLoop]: Abstraction has 5484 states and 7893 transitions. [2022-04-05 09:55:54,262 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 4 states have internal predecessors, (159), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:55:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7893 transitions. [2022-04-05 09:55:54,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-04-05 09:55:54,266 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:55:54,267 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-05 09:55:54,267 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-04-05 09:55:54,267 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:55:54,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:55:54,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1716898329, now seen corresponding path program 1 times [2022-04-05 09:55:54,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:55:54,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704330150] [2022-04-05 09:55:54,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:54,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:55:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:55,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:55:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:55,127 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-05 09:55:55,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:55:55,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704330150] [2022-04-05 09:55:55,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704330150] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 09:55:55,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376575094] [2022-04-05 09:55:55,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:55:55,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:55:55,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:55:55,145 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) [2022-04-05 09:55:55,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-05 09:55:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:55:56,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 1670 conjuncts, 95 conjunts are in the unsatisfiable core [2022-04-05 09:55:56,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 09:55:56,185 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 09:55:56,186 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 [2022-04-05 09:55:56,282 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-05 09:55:56,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-05 09:55:56,384 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 9 treesize of output 3 [2022-04-05 09:55:56,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:56,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-05 09:55:56,495 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-05 09:55:56,495 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-05 09:55:56,504 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 09:55:56,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2022-04-05 09:55:57,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:57,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-04-05 09:55:57,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:57,114 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-05 09:55:57,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-05 09:55:57,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:57,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-05 09:55:57,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:57,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-05 09:55:57,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:57,197 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 09:55:57,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-05 09:55:57,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:57,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-05 09:55:57,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:57,842 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-05 09:55:57,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-05 09:55:57,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:57,880 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 09:55:57,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-05 09:55:57,928 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-04-05 09:55:57,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-04-05 09:55:58,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:58,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:58,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:59,060 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-04-05 09:55:59,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 305 treesize of output 330 [2022-04-05 09:55:59,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:59,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:59,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:59,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:59,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:59,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:55:59,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 273 [2022-04-05 09:55:59,097 INFO L356 Elim1Store]: treesize reduction 154, result has 15.4 percent of original size [2022-04-05 09:55:59,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 333 treesize of output 267 [2022-04-05 09:56:02,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:02,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:02,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:02,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 236 [2022-04-05 09:56:02,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:02,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:02,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:02,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 300 treesize of output 242 [2022-04-05 09:56:02,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:02,230 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 09:56:02,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 300 treesize of output 300 [2022-04-05 09:56:02,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:02,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 87 [2022-04-05 09:56:02,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:02,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 59 [2022-04-05 09:56:02,515 INFO L356 Elim1Store]: treesize reduction 101, result has 22.9 percent of original size [2022-04-05 09:56:02,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 74 [2022-04-05 09:56:02,580 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-05 09:56:02,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-04-05 09:56:02,705 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 09:56:02,705 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 29 treesize of output 11 [2022-04-05 09:56:02,742 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-05 09:56:02,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 09:56:05,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:56:05,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:56:05,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-04-05 09:56:05,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:56:05,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:56:05,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-04-05 09:56:07,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:56:07,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:56:07,830 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:56:07,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:07,833 INFO L356 Elim1Store]: treesize reduction 3, result has 25.0 percent of original size [2022-04-05 09:56:07,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 1 [2022-04-05 09:56:07,961 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-05 09:56:07,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376575094] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 09:56:07,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 09:56:07,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 14] total 44 [2022-04-05 09:56:07,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083240482] [2022-04-05 09:56:07,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 09:56:07,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-04-05 09:56:07,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:56:07,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-04-05 09:56:07,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1590, Unknown=0, NotChecked=0, Total=1892 [2022-04-05 09:56:07,963 INFO L87 Difference]: Start difference. First operand 5484 states and 7893 transitions. Second operand has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:09,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:56:18,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:56:18,541 INFO L93 Difference]: Finished difference Result 25399 states and 36089 transitions. [2022-04-05 09:56:18,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-04-05 09:56:18,541 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 326 [2022-04-05 09:56:18,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:56:18,569 INFO L225 Difference]: With dead ends: 25399 [2022-04-05 09:56:18,570 INFO L226 Difference]: Without dead ends: 19943 [2022-04-05 09:56:18,576 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 687 SyntacticMatches, 4 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5840 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=1783, Invalid=15247, Unknown=0, NotChecked=0, Total=17030 [2022-04-05 09:56:18,577 INFO L913 BasicCegarLoop]: 460 mSDtfsCounter, 2096 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 5473 mSolverCounterSat, 227 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 5003 SdHoareTripleChecker+Invalid, 7958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 5473 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 2257 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-04-05 09:56:18,577 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2096 Valid, 5003 Invalid, 7958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 5473 Invalid, 1 Unknown, 2257 Unchecked, 6.3s Time] [2022-04-05 09:56:18,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19943 states. [2022-04-05 09:56:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19943 to 6943. [2022-04-05 09:56:18,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6943 states, 6938 states have (on average 1.467569904871721) internal successors, (10182), 6938 states have internal predecessors, (10182), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6943 states to 6943 states and 10186 transitions. [2022-04-05 09:56:18,780 INFO L78 Accepts]: Start accepts. Automaton has 6943 states and 10186 transitions. Word has length 326 [2022-04-05 09:56:18,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:56:18,781 INFO L478 AbstractCegarLoop]: Abstraction has 6943 states and 10186 transitions. [2022-04-05 09:56:18,781 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:56:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand 6943 states and 10186 transitions. [2022-04-05 09:56:18,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-04-05 09:56:18,788 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:56:18,788 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-05 09:56:18,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-05 09:56:18,988 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2022-04-05 09:56:18,989 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:56:18,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:56:18,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1003894121, now seen corresponding path program 1 times [2022-04-05 09:56:18,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:56:18,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443111671] [2022-04-05 09:56:18,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:18,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:56:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:56:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 399 proven. 413 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-04-05 09:56:19,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:56:19,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443111671] [2022-04-05 09:56:19,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443111671] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 09:56:19,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994656739] [2022-04-05 09:56:19,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:56:19,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:56:19,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:56:19,728 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 09:56:19,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-05 09:56:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:56:20,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1697 conjuncts, 99 conjunts are in the unsatisfiable core [2022-04-05 09:56:20,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 09:56:20,843 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 09:56:20,843 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 [2022-04-05 09:56:20,929 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-05 09:56:20,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-05 09:56:21,015 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 9 treesize of output 3 [2022-04-05 09:56:21,056 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 09:56:21,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-05 09:56:21,060 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-05 09:56:21,072 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 09:56:21,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-04-05 09:56:21,076 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-05 09:56:21,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:21,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-05 09:56:21,108 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-05 09:56:21,108 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-05 09:56:21,115 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 09:56:21,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-04-05 09:56:21,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:21,704 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-05 09:56:21,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-05 09:56:21,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:21,709 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-05 09:56:21,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:21,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-05 09:56:21,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:21,783 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 09:56:21,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-05 09:56:21,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:21,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-05 09:56:21,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:21,792 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-05 09:56:22,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:22,439 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-05 09:56:22,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-05 09:56:22,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:22,470 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 09:56:22,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-05 09:56:22,525 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-04-05 09:56:22,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 73 [2022-04-05 09:56:29,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-04-05 09:56:29,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 295 treesize of output 253 [2022-04-05 09:56:29,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:56:29,866 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-04-05 09:56:29,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 295 treesize of output 299 [2022-04-05 09:57:50,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:50,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:50,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:50,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-04-05 09:57:50,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:50,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:50,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:50,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 244 [2022-04-05 09:57:50,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:50,862 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-04-05 09:57:50,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 290 treesize of output 280 [2022-04-05 09:57:52,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:52,537 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 120 [2022-04-05 09:57:52,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:52,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 78 [2022-04-05 09:57:52,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:57:52,566 INFO L356 Elim1Store]: treesize reduction 143, result has 11.7 percent of original size [2022-04-05 09:57:52,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 97 treesize of output 93 [2022-04-05 09:57:52,629 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-05 09:57:52,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-04-05 09:57:52,755 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 09:57:52,756 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 29 treesize of output 11 [2022-04-05 09:57:52,780 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-05 09:57:52,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 09:57:55,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:57:55,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:57:55,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 268 treesize of output 214 [2022-04-05 09:58:10,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:58:10,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:58:10,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:58:10,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:58:10,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 09:58:10,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 09:58:10,085 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-04-05 09:58:10,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 86 treesize of output 1 [2022-04-05 09:58:10,207 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-05 09:58:10,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994656739] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 09:58:10,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 09:58:10,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 15] total 44 [2022-04-05 09:58:10,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544793210] [2022-04-05 09:58:10,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 09:58:10,208 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-04-05 09:58:10,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:58:10,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-04-05 09:58:10,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=1589, Unknown=7, NotChecked=0, Total=1892 [2022-04-05 09:58:10,209 INFO L87 Difference]: Start difference. First operand 6943 states and 10186 transitions. Second operand has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:58:12,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:14,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:16,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:18,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:19,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:21,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:23,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:25,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:27,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:58:29,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:23,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:23,151 INFO L93 Difference]: Finished difference Result 30489 states and 43465 transitions. [2022-04-05 09:59:23,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-04-05 09:59:23,151 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 327 [2022-04-05 09:59:23,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:23,204 INFO L225 Difference]: With dead ends: 30489 [2022-04-05 09:59:23,204 INFO L226 Difference]: Without dead ends: 23574 [2022-04-05 09:59:23,214 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 934 GetRequests, 747 SyntacticMatches, 4 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12450 ImplicationChecksByTransitivity, 61.6s TimeCoverageRelationStatistics Valid=3885, Invalid=30128, Unknown=27, NotChecked=0, Total=34040 [2022-04-05 09:59:23,214 INFO L913 BasicCegarLoop]: 529 mSDtfsCounter, 2190 mSDsluCounter, 7674 mSDsCounter, 0 mSdLazyCounter, 8214 mSolverCounterSat, 332 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 8203 SdHoareTripleChecker+Invalid, 11349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 8214 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 2799 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:23,214 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [2190 Valid, 8203 Invalid, 11349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 8214 Invalid, 4 Unknown, 2799 Unchecked, 25.8s Time] [2022-04-05 09:59:23,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23574 states. [2022-04-05 09:59:23,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23574 to 12923. [2022-04-05 09:59:23,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12923 states, 12918 states have (on average 1.4328843474222015) internal successors, (18510), 12918 states have internal predecessors, (18510), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:23,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12923 states to 12923 states and 18514 transitions. [2022-04-05 09:59:23,681 INFO L78 Accepts]: Start accepts. Automaton has 12923 states and 18514 transitions. Word has length 327 [2022-04-05 09:59:23,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:23,681 INFO L478 AbstractCegarLoop]: Abstraction has 12923 states and 18514 transitions. [2022-04-05 09:59:23,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 12.295454545454545) internal successors, (541), 43 states have internal predecessors, (541), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:23,682 INFO L276 IsEmpty]: Start isEmpty. Operand 12923 states and 18514 transitions. [2022-04-05 09:59:23,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-04-05 09:59:23,692 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:23,692 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:23,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-05 09:59:23,893 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:59:23,893 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:23,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:23,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1862554437, now seen corresponding path program 1 times [2022-04-05 09:59:23,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:23,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007432135] [2022-04-05 09:59:23,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:23,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:23,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 887 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-04-05 09:59:24,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:24,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007432135] [2022-04-05 09:59:24,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007432135] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:24,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:24,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:24,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841997824] [2022-04-05 09:59:24,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:24,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:24,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:24,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:24,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:24,034 INFO L87 Difference]: Start difference. First operand 12923 states and 18514 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:26,041 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:26,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:26,836 INFO L93 Difference]: Finished difference Result 26092 states and 37314 transitions. [2022-04-05 09:59:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:26,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 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 328 [2022-04-05 09:59:26,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:26,851 INFO L225 Difference]: With dead ends: 26092 [2022-04-05 09:59:26,852 INFO L226 Difference]: Without dead ends: 13197 [2022-04-05 09:59:26,864 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:26,864 INFO L913 BasicCegarLoop]: 236 mSDtfsCounter, 38 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:26,864 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 581 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 466 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 09:59:26,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13197 states. [2022-04-05 09:59:27,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13197 to 12923. [2022-04-05 09:59:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12923 states, 12918 states have (on average 1.4314909428704135) internal successors, (18492), 12918 states have internal predecessors, (18492), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:27,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12923 states to 12923 states and 18496 transitions. [2022-04-05 09:59:27,324 INFO L78 Accepts]: Start accepts. Automaton has 12923 states and 18496 transitions. Word has length 328 [2022-04-05 09:59:27,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:27,324 INFO L478 AbstractCegarLoop]: Abstraction has 12923 states and 18496 transitions. [2022-04-05 09:59:27,324 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:27,324 INFO L276 IsEmpty]: Start isEmpty. Operand 12923 states and 18496 transitions. [2022-04-05 09:59:27,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-04-05 09:59:27,336 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:27,336 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 09:59:27,336 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-04-05 09:59:27,336 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:27,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:27,337 INFO L85 PathProgramCache]: Analyzing trace with hash 552922059, now seen corresponding path program 1 times [2022-04-05 09:59:27,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:27,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411910648] [2022-04-05 09:59:27,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:27,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 547 proven. 74 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-04-05 09:59:27,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:27,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411910648] [2022-04-05 09:59:27,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411910648] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 09:59:27,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921822748] [2022-04-05 09:59:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:27,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:59:27,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:59:27,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 09:59:27,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-05 09:59:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:28,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1677 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-05 09:59:28,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 09:59:28,749 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-05 09:59:28,810 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 [2022-04-05 09:59:28,900 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-04-05 09:59:28,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 09:59:28,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921822748] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:28,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 09:59:28,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-04-05 09:59:28,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398498056] [2022-04-05 09:59:28,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:28,901 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:28,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:28,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-05 09:59:28,902 INFO L87 Difference]: Start difference. First operand 12923 states and 18496 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:30,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:31,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:31,536 INFO L93 Difference]: Finished difference Result 26610 states and 38026 transitions. [2022-04-05 09:59:31,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:31,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 1 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 328 [2022-04-05 09:59:31,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:31,551 INFO L225 Difference]: With dead ends: 26610 [2022-04-05 09:59:31,551 INFO L226 Difference]: Without dead ends: 13715 [2022-04-05 09:59:31,563 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-04-05 09:59:31,563 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 47 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:31,563 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 609 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 09:59:31,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13715 states. [2022-04-05 09:59:32,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13715 to 13209. [2022-04-05 09:59:32,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13209 states, 13204 states have (on average 1.432671917600727) internal successors, (18917), 13204 states have internal predecessors, (18917), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:32,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13209 states to 13209 states and 18921 transitions. [2022-04-05 09:59:32,060 INFO L78 Accepts]: Start accepts. Automaton has 13209 states and 18921 transitions. Word has length 328 [2022-04-05 09:59:32,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:32,060 INFO L478 AbstractCegarLoop]: Abstraction has 13209 states and 18921 transitions. [2022-04-05 09:59:32,060 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:32,060 INFO L276 IsEmpty]: Start isEmpty. Operand 13209 states and 18921 transitions. [2022-04-05 09:59:32,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-04-05 09:59:32,072 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:32,072 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 4, 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] [2022-04-05 09:59:32,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-04-05 09:59:32,287 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:59:32,287 INFO L403 AbstractCegarLoop]: === Iteration 69 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:32,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:32,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1376539798, now seen corresponding path program 1 times [2022-04-05 09:59:32,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:32,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444591718] [2022-04-05 09:59:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:32,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:32,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:32,414 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-04-05 09:59:32,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:32,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444591718] [2022-04-05 09:59:32,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444591718] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:32,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:32,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:32,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114365732] [2022-04-05 09:59:32,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:32,415 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:32,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:32,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:32,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:32,415 INFO L87 Difference]: Start difference. First operand 13209 states and 18921 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:34,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:36,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:38,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:39,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:40,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:40,022 INFO L93 Difference]: Finished difference Result 26703 states and 38192 transitions. [2022-04-05 09:59:40,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:40,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 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 328 [2022-04-05 09:59:40,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:40,041 INFO L225 Difference]: With dead ends: 26703 [2022-04-05 09:59:40,041 INFO L226 Difference]: Without dead ends: 13522 [2022-04-05 09:59:40,055 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:40,055 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 26 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:40,055 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 525 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 450 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-04-05 09:59:40,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13522 states. [2022-04-05 09:59:40,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13522 to 13213. [2022-04-05 09:59:40,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13213 states, 13208 states have (on average 1.431329497274379) internal successors, (18905), 13208 states have internal predecessors, (18905), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13213 states to 13213 states and 18909 transitions. [2022-04-05 09:59:40,547 INFO L78 Accepts]: Start accepts. Automaton has 13213 states and 18909 transitions. Word has length 328 [2022-04-05 09:59:40,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:40,548 INFO L478 AbstractCegarLoop]: Abstraction has 13213 states and 18909 transitions. [2022-04-05 09:59:40,548 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:40,548 INFO L276 IsEmpty]: Start isEmpty. Operand 13213 states and 18909 transitions. [2022-04-05 09:59:40,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-04-05 09:59:40,561 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:40,561 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-05 09:59:40,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-04-05 09:59:40,562 INFO L403 AbstractCegarLoop]: === Iteration 70 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:40,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:40,562 INFO L85 PathProgramCache]: Analyzing trace with hash -442480446, now seen corresponding path program 1 times [2022-04-05 09:59:40,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:40,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856975048] [2022-04-05 09:59:40,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:40,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:40,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:40,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:40,695 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 529 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-04-05 09:59:40,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:40,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856975048] [2022-04-05 09:59:40,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856975048] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:40,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:40,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:40,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622098865] [2022-04-05 09:59:40,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:40,696 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:40,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:40,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:40,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:40,696 INFO L87 Difference]: Start difference. First operand 13213 states and 18909 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:43,412 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:45,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:47,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:48,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:48,203 INFO L93 Difference]: Finished difference Result 26039 states and 37219 transitions. [2022-04-05 09:59:48,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 09:59:48,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 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 329 [2022-04-05 09:59:48,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:48,219 INFO L225 Difference]: With dead ends: 26039 [2022-04-05 09:59:48,219 INFO L226 Difference]: Without dead ends: 12854 [2022-04-05 09:59:48,232 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 09:59:48,232 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 14 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:48,232 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 553 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 380 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2022-04-05 09:59:48,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12854 states. [2022-04-05 09:59:48,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12854 to 12706. [2022-04-05 09:59:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12706 states, 12701 states have (on average 1.4274466577434848) internal successors, (18130), 12701 states have internal predecessors, (18130), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:48,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12706 states to 12706 states and 18134 transitions. [2022-04-05 09:59:48,731 INFO L78 Accepts]: Start accepts. Automaton has 12706 states and 18134 transitions. Word has length 329 [2022-04-05 09:59:48,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:48,731 INFO L478 AbstractCegarLoop]: Abstraction has 12706 states and 18134 transitions. [2022-04-05 09:59:48,731 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 12706 states and 18134 transitions. [2022-04-05 09:59:48,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-04-05 09:59:48,742 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:48,742 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-05 09:59:48,742 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-04-05 09:59:48,742 INFO L403 AbstractCegarLoop]: === Iteration 71 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:48,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:48,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1053472, now seen corresponding path program 1 times [2022-04-05 09:59:48,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:48,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172484451] [2022-04-05 09:59:48,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:48,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:48,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:48,896 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 559 proven. 19 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-04-05 09:59:48,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:48,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172484451] [2022-04-05 09:59:48,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172484451] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 09:59:48,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635156511] [2022-04-05 09:59:48,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:48,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:59:48,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 09:59:48,898 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 09:59:48,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-05 09:59:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:49,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-05 09:59:49,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 09:59:50,141 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 09:59:50,141 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 [2022-04-05 09:59:50,203 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 [2022-04-05 09:59:50,293 INFO L134 CoverageAnalysis]: Checked inductivity of 911 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-04-05 09:59:50,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 09:59:50,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635156511] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:50,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 09:59:50,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-04-05 09:59:50,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937524082] [2022-04-05 09:59:50,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:50,294 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 09:59:50,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:50,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 09:59:50,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-05 09:59:50,294 INFO L87 Difference]: Start difference. First operand 12706 states and 18134 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:52,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:52,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 09:59:52,963 INFO L93 Difference]: Finished difference Result 25955 states and 36979 transitions. [2022-04-05 09:59:52,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 09:59:52,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 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 329 [2022-04-05 09:59:52,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 09:59:52,980 INFO L225 Difference]: With dead ends: 25955 [2022-04-05 09:59:52,981 INFO L226 Difference]: Without dead ends: 13277 [2022-04-05 09:59:52,995 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-04-05 09:59:52,995 INFO L913 BasicCegarLoop]: 251 mSDtfsCounter, 48 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-05 09:59:52,995 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 609 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-04-05 09:59:53,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13277 states. [2022-04-05 09:59:53,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13277 to 12771. [2022-04-05 09:59:53,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12771 states, 12766 states have (on average 1.4281685727714242) internal successors, (18232), 12766 states have internal predecessors, (18232), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:53,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12771 states to 12771 states and 18236 transitions. [2022-04-05 09:59:53,466 INFO L78 Accepts]: Start accepts. Automaton has 12771 states and 18236 transitions. Word has length 329 [2022-04-05 09:59:53,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 09:59:53,466 INFO L478 AbstractCegarLoop]: Abstraction has 12771 states and 18236 transitions. [2022-04-05 09:59:53,466 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:53,466 INFO L276 IsEmpty]: Start isEmpty. Operand 12771 states and 18236 transitions. [2022-04-05 09:59:53,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-04-05 09:59:53,479 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 09:59:53,479 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-05 09:59:53,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-05 09:59:53,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 09:59:53,680 INFO L403 AbstractCegarLoop]: === Iteration 72 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 09:59:53,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 09:59:53,680 INFO L85 PathProgramCache]: Analyzing trace with hash -370537459, now seen corresponding path program 1 times [2022-04-05 09:59:53,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 09:59:53,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980722543] [2022-04-05 09:59:53,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 09:59:53,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 09:59:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 09:59:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 09:59:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 557 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2022-04-05 09:59:53,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 09:59:53,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980722543] [2022-04-05 09:59:53,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980722543] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 09:59:53,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 09:59:53,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 09:59:53,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040787049] [2022-04-05 09:59:53,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 09:59:53,822 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 09:59:53,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 09:59:53,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 09:59:53,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 09:59:53,823 INFO L87 Difference]: Start difference. First operand 12771 states and 18236 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 09:59:56,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 09:59:58,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:00,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:00:01,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:01,072 INFO L93 Difference]: Finished difference Result 25875 states and 36883 transitions. [2022-04-05 10:00:01,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:00:01,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 330 [2022-04-05 10:00:01,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:01,087 INFO L225 Difference]: With dead ends: 25875 [2022-04-05 10:00:01,087 INFO L226 Difference]: Without dead ends: 13132 [2022-04-05 10:00:01,097 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:00:01,098 INFO L913 BasicCegarLoop]: 243 mSDtfsCounter, 43 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:01,098 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 596 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 502 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-04-05 10:00:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13132 states. [2022-04-05 10:00:01,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13132 to 12684. [2022-04-05 10:00:01,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12684 states, 12679 states have (on average 1.4254278728606358) internal successors, (18073), 12679 states have internal predecessors, (18073), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:01,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12684 states to 12684 states and 18077 transitions. [2022-04-05 10:00:01,538 INFO L78 Accepts]: Start accepts. Automaton has 12684 states and 18077 transitions. Word has length 330 [2022-04-05 10:00:01,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:01,539 INFO L478 AbstractCegarLoop]: Abstraction has 12684 states and 18077 transitions. [2022-04-05 10:00:01,539 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 12684 states and 18077 transitions. [2022-04-05 10:00:01,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-04-05 10:00:01,550 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:01,550 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 10:00:01,550 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-04-05 10:00:01,551 INFO L403 AbstractCegarLoop]: === Iteration 73 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:01,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:01,551 INFO L85 PathProgramCache]: Analyzing trace with hash 958280115, now seen corresponding path program 1 times [2022-04-05 10:00:01,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:01,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588282499] [2022-04-05 10:00:01,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:01,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:01,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:01,701 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 571 proven. 127 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-04-05 10:00:01,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:01,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588282499] [2022-04-05 10:00:01,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588282499] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:00:01,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473074578] [2022-04-05 10:00:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:01,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:00:01,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:00:01,703 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 10:00:01,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-05 10:00:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:02,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1694 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-05 10:00:02,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:00:02,831 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:00:02,831 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 [2022-04-05 10:00:02,864 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:00:02,864 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 [2022-04-05 10:00:02,921 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 20 treesize of output 8 [2022-04-05 10:00:03,054 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:00:03,055 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 [2022-04-05 10:00:03,124 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 [2022-04-05 10:00:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 565 proven. 93 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-04-05 10:00:03,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:00:03,578 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 575 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2022-04-05 10:00:03,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473074578] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:00:03,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:00:03,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 8] total 13 [2022-04-05 10:00:03,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077775389] [2022-04-05 10:00:03,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:00:03,579 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 10:00:03,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:00:03,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 10:00:03,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-04-05 10:00:03,579 INFO L87 Difference]: Start difference. First operand 12684 states and 18077 transitions. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:05,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:00:05,124 INFO L93 Difference]: Finished difference Result 26113 states and 37135 transitions. [2022-04-05 10:00:05,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 10:00:05,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 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 330 [2022-04-05 10:00:05,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:00:05,143 INFO L225 Difference]: With dead ends: 26113 [2022-04-05 10:00:05,143 INFO L226 Difference]: Without dead ends: 13457 [2022-04-05 10:00:05,151 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-04-05 10:00:05,151 INFO L913 BasicCegarLoop]: 158 mSDtfsCounter, 98 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-05 10:00:05,151 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 417 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-05 10:00:05,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13457 states. [2022-04-05 10:00:05,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13457 to 12684. [2022-04-05 10:00:05,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12684 states, 12679 states have (on average 1.4235349790992982) internal successors, (18049), 12679 states have internal predecessors, (18049), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12684 states to 12684 states and 18053 transitions. [2022-04-05 10:00:05,598 INFO L78 Accepts]: Start accepts. Automaton has 12684 states and 18053 transitions. Word has length 330 [2022-04-05 10:00:05,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:00:05,598 INFO L478 AbstractCegarLoop]: Abstraction has 12684 states and 18053 transitions. [2022-04-05 10:00:05,598 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:00:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 12684 states and 18053 transitions. [2022-04-05 10:00:05,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2022-04-05 10:00:05,609 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:00:05,609 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2022-04-05 10:00:05,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-05 10:00:05,809 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:00:05,810 INFO L403 AbstractCegarLoop]: === Iteration 74 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:00:05,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:00:05,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1269388347, now seen corresponding path program 1 times [2022-04-05 10:00:05,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:00:05,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881343550] [2022-04-05 10:00:05,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:05,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:00:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:07,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:00:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 198 proven. 696 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-04-05 10:00:07,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:00:07,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881343550] [2022-04-05 10:00:07,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881343550] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:00:07,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019607079] [2022-04-05 10:00:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:00:07,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:00:07,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:00:07,078 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 10:00:07,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-05 10:00:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:00:08,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 1703 conjuncts, 99 conjunts are in the unsatisfiable core [2022-04-05 10:00:08,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:00:08,325 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:00:08,325 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 [2022-04-05 10:00:08,435 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-05 10:00:08,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2022-04-05 10:00:08,522 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 9 treesize of output 3 [2022-04-05 10:00:08,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:08,595 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2022-04-05 10:00:08,617 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-05 10:00:08,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 60 [2022-04-05 10:00:08,624 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:00:08,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 72 [2022-04-05 10:00:09,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:09,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 57 [2022-04-05 10:00:09,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:09,191 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-05 10:00:09,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 49 [2022-04-05 10:00:09,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:09,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2022-04-05 10:00:09,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:09,262 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 10:00:09,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 68 [2022-04-05 10:00:09,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:09,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-05 10:00:09,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:09,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 67 [2022-04-05 10:00:09,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:09,955 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-05 10:00:09,956 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 160 treesize of output 155 [2022-04-05 10:00:09,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:09,991 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 10:00:09,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 137 treesize of output 132 [2022-04-05 10:00:10,038 INFO L356 Elim1Store]: treesize reduction 53, result has 48.5 percent of original size [2022-04-05 10:00:10,038 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 75 [2022-04-05 10:00:17,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 247 [2022-04-05 10:00:17,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 247 [2022-04-05 10:00:17,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:00:17,456 INFO L356 Elim1Store]: treesize reduction 85, result has 18.3 percent of original size [2022-04-05 10:00:17,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 289 treesize of output 293 [2022-04-05 10:01:39,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:39,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:39,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:39,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 284 treesize of output 238 [2022-04-05 10:01:39,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:39,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:39,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:39,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 284 treesize of output 238 [2022-04-05 10:01:39,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:39,458 INFO L356 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2022-04-05 10:01:39,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 284 treesize of output 274 [2022-04-05 10:01:41,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:41,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 108 [2022-04-05 10:01:41,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:41,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 72 [2022-04-05 10:01:41,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:41,715 INFO L356 Elim1Store]: treesize reduction 143, result has 11.7 percent of original size [2022-04-05 10:01:41,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 91 treesize of output 87 [2022-04-05 10:01:41,779 INFO L356 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2022-04-05 10:01:41,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 35 [2022-04-05 10:01:41,813 INFO L356 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-04-05 10:01:41,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 26 [2022-04-05 10:01:41,941 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:01:41,941 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 29 treesize of output 11 [2022-04-05 10:01:41,971 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 456 proven. 328 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2022-04-05 10:01:41,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:01:44,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:01:44,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:01:44,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 262 treesize of output 202 [2022-04-05 10:01:44,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:01:44,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:01:44,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 154 [2022-04-05 10:01:46,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:01:46,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-04-05 10:01:46,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 10:01:46,522 INFO L356 Elim1Store]: treesize reduction 3, result has 25.0 percent of original size [2022-04-05 10:01:46,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 1 [2022-04-05 10:01:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 581 proven. 141 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-04-05 10:01:46,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019607079] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 10:01:46,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 10:01:46,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 19, 14] total 50 [2022-04-05 10:01:46,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277742999] [2022-04-05 10:01:46,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 10:01:46,642 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-04-05 10:01:46,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:01:46,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-04-05 10:01:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=2137, Unknown=0, NotChecked=0, Total=2450 [2022-04-05 10:01:46,643 INFO L87 Difference]: Start difference. First operand 12684 states and 18053 transitions. Second operand has 50 states, 50 states have (on average 12.46) internal successors, (623), 49 states have internal predecessors, (623), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:01:49,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:51,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:53,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:55,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:57,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:01:59,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:01,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:03,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:05,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:07,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:09,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:11,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:02:14,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:09,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:09,957 INFO L93 Difference]: Finished difference Result 79440 states and 110074 transitions. [2022-04-05 10:03:09,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 403 states. [2022-04-05 10:03:09,958 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 12.46) internal successors, (623), 49 states have internal predecessors, (623), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 330 [2022-04-05 10:03:09,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:10,043 INFO L225 Difference]: With dead ends: 79440 [2022-04-05 10:03:10,043 INFO L226 Difference]: Without dead ends: 66784 [2022-04-05 10:03:10,069 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1417 GetRequests, 891 SyntacticMatches, 88 SemanticMatches, 438 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99562 ImplicationChecksByTransitivity, 35.5s TimeCoverageRelationStatistics Valid=16375, Invalid=176785, Unknown=0, NotChecked=0, Total=193160 [2022-04-05 10:03:10,070 INFO L913 BasicCegarLoop]: 864 mSDtfsCounter, 4477 mSDsluCounter, 20354 mSDsCounter, 0 mSdLazyCounter, 20907 mSolverCounterSat, 659 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 21218 SdHoareTripleChecker+Invalid, 33948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 20907 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 12370 IncrementalHoareTripleChecker+Unchecked, 46.5s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:10,070 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4477 Valid, 21218 Invalid, 33948 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [659 Valid, 20907 Invalid, 12 Unknown, 12370 Unchecked, 46.5s Time] [2022-04-05 10:03:10,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66784 states. [2022-04-05 10:03:11,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66784 to 32903. [2022-04-05 10:03:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32903 states, 32898 states have (on average 1.4045838652805642) internal successors, (46208), 32898 states have internal predecessors, (46208), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:11,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32903 states to 32903 states and 46212 transitions. [2022-04-05 10:03:11,758 INFO L78 Accepts]: Start accepts. Automaton has 32903 states and 46212 transitions. Word has length 330 [2022-04-05 10:03:11,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:11,758 INFO L478 AbstractCegarLoop]: Abstraction has 32903 states and 46212 transitions. [2022-04-05 10:03:11,758 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 12.46) internal successors, (623), 49 states have internal predecessors, (623), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:11,758 INFO L276 IsEmpty]: Start isEmpty. Operand 32903 states and 46212 transitions. [2022-04-05 10:03:11,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-04-05 10:03:11,779 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:11,779 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 4, 4, 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] [2022-04-05 10:03:11,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-05 10:03:11,980 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:03:11,980 INFO L403 AbstractCegarLoop]: === Iteration 75 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash -761282598, now seen corresponding path program 1 times [2022-04-05 10:03:11,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:11,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739508938] [2022-04-05 10:03:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:11,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:12,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:12,118 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2022-04-05 10:03:12,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:12,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739508938] [2022-04-05 10:03:12,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739508938] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 10:03:12,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 10:03:12,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 10:03:12,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356967601] [2022-04-05 10:03:12,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:12,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 10:03:12,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:12,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 10:03:12,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 10:03:12,119 INFO L87 Difference]: Start difference. First operand 32903 states and 46212 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:13,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:15,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:17,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:19,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 10:03:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 10:03:21,649 INFO L93 Difference]: Finished difference Result 66729 states and 93543 transitions. [2022-04-05 10:03:21,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 10:03:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 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 331 [2022-04-05 10:03:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 10:03:21,688 INFO L225 Difference]: With dead ends: 66729 [2022-04-05 10:03:21,688 INFO L226 Difference]: Without dead ends: 33854 [2022-04-05 10:03:21,730 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 10:03:21,731 INFO L913 BasicCegarLoop]: 245 mSDtfsCounter, 45 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-04-05 10:03:21,731 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 600 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 514 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2022-04-05 10:03:21,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33854 states. [2022-04-05 10:03:23,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33854 to 32861. [2022-04-05 10:03:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32861 states, 32856 states have (on average 1.4022705137570002) internal successors, (46073), 32856 states have internal predecessors, (46073), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:23,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32861 states to 32861 states and 46077 transitions. [2022-04-05 10:03:23,208 INFO L78 Accepts]: Start accepts. Automaton has 32861 states and 46077 transitions. Word has length 331 [2022-04-05 10:03:23,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 10:03:23,208 INFO L478 AbstractCegarLoop]: Abstraction has 32861 states and 46077 transitions. [2022-04-05 10:03:23,208 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 states have internal predecessors, (166), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 10:03:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 32861 states and 46077 transitions. [2022-04-05 10:03:23,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-04-05 10:03:23,231 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 10:03:23,231 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 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] [2022-04-05 10:03:23,231 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-04-05 10:03:23,231 INFO L403 AbstractCegarLoop]: === Iteration 76 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 10:03:23,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 10:03:23,231 INFO L85 PathProgramCache]: Analyzing trace with hash 704074666, now seen corresponding path program 1 times [2022-04-05 10:03:23,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 10:03:23,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688146178] [2022-04-05 10:03:23,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:23,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 10:03:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 10:03:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 625 proven. 69 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-04-05 10:03:23,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 10:03:23,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688146178] [2022-04-05 10:03:23,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688146178] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 10:03:23,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716013268] [2022-04-05 10:03:23,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 10:03:23,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 10:03:23,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 10:03:23,488 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-05 10:03:23,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-05 10:03:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 10:03:24,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1702 conjuncts, 25 conjunts are in the unsatisfiable core [2022-04-05 10:03:24,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 10:03:24,661 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 10:03:24,662 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 [2022-04-05 10:03:24,696 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 10:03:24,696 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 [2022-04-05 10:03:24,776 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 0 case distinctions, treesize of input 13 treesize of output 9 [2022-04-05 10:03:24,790 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 31 treesize of output 19 [2022-04-05 10:03:24,791 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 13 [2022-04-05 10:03:24,803 INFO L356 Elim1Store]: treesize reduction 25, result has 43.2 percent of original size [2022-04-05 10:03:24,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-04-05 10:03:24,863 INFO L356 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-04-05 10:03:24,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 54 [2022-04-05 10:03:25,037 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 [2022-04-05 10:03:25,205 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 625 proven. 48 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-04-05 10:03:25,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 10:03:25,469 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 38 treesize of output 26 [2022-04-05 10:03:25,470 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 26 treesize of output 20 [2022-04-05 10:03:26,808 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_184 Int) (v_arrayElimCell_183 Int)) (not (= (select (select (store |c_#memory_int| v_arrayElimCell_183 (store (select |c_#memory_int| v_arrayElimCell_183) (+ 904 v_arrayElimCell_184) 3)) c_ssl3_accept_~s.base) (+ 72 c_ssl3_accept_~s.offset)) 8609))) is different from false [2022-04-05 10:03:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 941 backedges. 630 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-04-05 10:03:26,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716013268] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 10:03:26,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 10:03:26,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 9] total 19 [2022-04-05 10:03:26,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593250849] [2022-04-05 10:03:26,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 10:03:26,911 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 10:03:26,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 10:03:26,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 10:03:26,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=252, Unknown=1, NotChecked=32, Total=342 [2022-04-05 10:03:26,912 INFO L87 Difference]: Start difference. First operand 32861 states and 46077 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 6 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)