/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/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7390193 [2022-04-05 04:30:49,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-05 04:30:49,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-05 04:30:49,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-05 04:30:49,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-05 04:30:49,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-05 04:30:49,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-05 04:30:49,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-05 04:30:49,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-05 04:30:49,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-05 04:30:49,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-05 04:30:49,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-05 04:30:49,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-05 04:30:49,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-05 04:30:49,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-05 04:30:49,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-05 04:30:49,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-05 04:30:49,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-05 04:30:49,667 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-05 04:30:49,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-05 04:30:49,669 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-05 04:30:49,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-05 04:30:49,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-05 04:30:49,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-05 04:30:49,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-05 04:30:49,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-05 04:30:49,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-05 04:30:49,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-05 04:30:49,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-05 04:30:49,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-05 04:30:49,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-05 04:30:49,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-05 04:30:49,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-05 04:30:49,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-05 04:30:49,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-05 04:30:49,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-05 04:30:49,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-05 04:30:49,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-05 04:30:49,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-05 04:30:49,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-05 04:30:49,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-05 04:30:49,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-05 04:30:49,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-05 04:30:49,706 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-05 04:30:49,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-05 04:30:49,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-05 04:30:49,707 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-05 04:30:49,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-05 04:30:49,708 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-05 04:30:49,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-05 04:30:49,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-05 04:30:49,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-05 04:30:49,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-05 04:30:49,708 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-05 04:30:49,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-05 04:30:49,709 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-05 04:30:49,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-05 04:30:49,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-05 04:30:49,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-05 04:30:49,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-05 04:30:49,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-05 04:30:49,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:30:49,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-05 04:30:49,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-05 04:30:49,710 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-05 04:30:49,710 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-05 04:30:49,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-05 04:30:49,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-05 04:30:49,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-05 04:30:49,897 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-05 04:30:49,898 INFO L275 PluginConnector]: CDTParser initialized [2022-04-05 04:30:49,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-04-05 04:30:49,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09b085f0d/45333825e2c8428d80e2eca32b07c36b/FLAGeee289d9e [2022-04-05 04:30:50,419 INFO L306 CDTParser]: Found 1 translation units. [2022-04-05 04:30:50,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl/s3_srvr.blast.14.i.cil-1.c [2022-04-05 04:30:50,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09b085f0d/45333825e2c8428d80e2eca32b07c36b/FLAGeee289d9e [2022-04-05 04:30:50,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09b085f0d/45333825e2c8428d80e2eca32b07c36b [2022-04-05 04:30:50,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-05 04:30:50,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-05 04:30:50,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-05 04:30:50,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-05 04:30:50,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-05 04:30:50,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:50,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311e86a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50, skipping insertion in model container [2022-04-05 04:30:50,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:50,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-05 04:30:50,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-05 04:30:50,829 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.14.i.cil-1.c[76536,76549] [2022-04-05 04:30:50,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:30:50,860 INFO L203 MainTranslator]: Completed pre-run [2022-04-05 04:30:50,935 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.14.i.cil-1.c[76536,76549] [2022-04-05 04:30:50,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-05 04:30:50,954 INFO L208 MainTranslator]: Completed translation [2022-04-05 04:30:50,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50 WrapperNode [2022-04-05 04:30:50,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-05 04:30:50,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-05 04:30:50,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-05 04:30:50,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-05 04:30:50,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:50,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:51,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:51,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:51,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:51,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:51,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:51,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-05 04:30:51,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-05 04:30:51,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-05 04:30:51,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-05 04:30:51,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50" (1/1) ... [2022-04-05 04:30:51,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-05 04:30:51,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:30:51,088 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 04:30:51,095 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 04:30:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-05 04:30:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-05 04:30:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-05 04:30:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_get_server_method [2022-04-05 04:30:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure SSLv3_server_method [2022-04-05 04:30:51,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-05 04:30:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2022-04-05 04:30:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure sslv3_base_method [2022-04-05 04:30:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-04-05 04:30:51,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-04-05 04:30:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-05 04:30:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-05 04:30:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-05 04:30:51,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-05 04:30:51,119 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-04-05 04:30:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-05 04:30:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-05 04:30:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-05 04:30:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-04-05 04:30:51,120 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure SSLv3_server_method [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure sslv3_base_method [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_get_server_method [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-05 04:30:51,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-05 04:30:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-05 04:30:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-04-05 04:30:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-04-05 04:30:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-04-05 04:30:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-04-05 04:30:51,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-05 04:30:51,286 INFO L234 CfgBuilder]: Building ICFG [2022-04-05 04:30:51,288 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-05 04:30:51,967 WARN L811 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-04-05 04:30:52,341 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2022-04-05 04:30:52,341 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2022-04-05 04:30:52,353 INFO L275 CfgBuilder]: Performing block encoding [2022-04-05 04:30:52,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-05 04:30:52,361 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-05 04:30:52,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:30:52 BoogieIcfgContainer [2022-04-05 04:30:52,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-05 04:30:52,364 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-05 04:30:52,364 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-05 04:30:52,364 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-05 04:30:52,366 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:30:52" (1/1) ... [2022-04-05 04:30:52,368 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-05 04:30:52,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:30:52 BasicIcfg [2022-04-05 04:30:52,429 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-05 04:30:52,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-05 04:30:52,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-05 04:30:52,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-05 04:30:52,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.04 04:30:50" (1/4) ... [2022-04-05 04:30:52,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cf92b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:30:52, skipping insertion in model container [2022-04-05 04:30:52,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.04 04:30:50" (2/4) ... [2022-04-05 04:30:52,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cf92b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.04 04:30:52, skipping insertion in model container [2022-04-05 04:30:52,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.04 04:30:52" (3/4) ... [2022-04-05 04:30:52,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cf92b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.04 04:30:52, skipping insertion in model container [2022-04-05 04:30:52,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 05.04 04:30:52" (4/4) ... [2022-04-05 04:30:52,437 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.14.i.cil-1.cJordan [2022-04-05 04:30:52,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-05 04:30:52,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-05 04:30:52,476 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-05 04:30:52,482 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-05 04:30:52,483 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-05 04:30:52,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 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 04:30:52,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-04-05 04:30:52,514 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:30:52,514 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:30:52,515 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:30:52,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:30:52,518 INFO L85 PathProgramCache]: Analyzing trace with hash -18257494, now seen corresponding path program 1 times [2022-04-05 04:30:52,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:30:52,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776219395] [2022-04-05 04:30:52,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:30:52,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:30:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:30:52,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:30:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:30:52,954 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 04:30:52,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:30:52,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776219395] [2022-04-05 04:30:52,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776219395] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:30:52,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:30:52,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:30:52,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199410924] [2022-04-05 04:30:52,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:30:52,963 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:30:52,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:30:52,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:30:52,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:30:52,987 INFO L87 Difference]: Start difference. First operand has 164 states, 156 states have (on average 1.7179487179487178) internal successors, (268), 157 states have internal predecessors, (268), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:30:54,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:30:54,788 INFO L93 Difference]: Finished difference Result 299 states and 501 transitions. [2022-04-05 04:30:54,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:30:54,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-04-05 04:30:54,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:30:54,798 INFO L225 Difference]: With dead ends: 299 [2022-04-05 04:30:54,798 INFO L226 Difference]: Without dead ends: 273 [2022-04-05 04:30:54,799 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 04:30:54,801 INFO L913 BasicCegarLoop]: 170 mSDtfsCounter, 166 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:30:54,801 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 499 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-05 04:30:54,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-04-05 04:30:54,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 188. [2022-04-05 04:30:54,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 183 states have (on average 1.6174863387978142) internal successors, (296), 183 states have internal predecessors, (296), 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 04:30:54,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 300 transitions. [2022-04-05 04:30:54,830 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 300 transitions. Word has length 50 [2022-04-05 04:30:54,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:30:54,831 INFO L478 AbstractCegarLoop]: Abstraction has 188 states and 300 transitions. [2022-04-05 04:30:54,831 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:30:54,831 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 300 transitions. [2022-04-05 04:30:54,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-04-05 04:30:54,833 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:30:54,833 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:30:54,833 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-05 04:30:54,833 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:30:54,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:30:54,833 INFO L85 PathProgramCache]: Analyzing trace with hash 346272675, now seen corresponding path program 1 times [2022-04-05 04:30:54,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:30:54,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191027593] [2022-04-05 04:30:54,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:30:54,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:30:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:30:54,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:30:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:30:54,947 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 04:30:54,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:30:54,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191027593] [2022-04-05 04:30:54,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191027593] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:30:54,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:30:54,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:30:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440315978] [2022-04-05 04:30:54,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:30:54,949 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:30:54,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:30:54,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:30:54,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:30:54,950 INFO L87 Difference]: Start difference. First operand 188 states and 300 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:30:57,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:30:59,583 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 04:30:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:30:59,970 INFO L93 Difference]: Finished difference Result 216 states and 340 transitions. [2022-04-05 04:30:59,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:30:59,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2022-04-05 04:30:59,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:30:59,972 INFO L225 Difference]: With dead ends: 216 [2022-04-05 04:30:59,972 INFO L226 Difference]: Without dead ends: 216 [2022-04-05 04:30:59,972 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 04:30:59,973 INFO L913 BasicCegarLoop]: 198 mSDtfsCounter, 22 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:30:59,973 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 517 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 377 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-04-05 04:30:59,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-04-05 04:30:59,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-04-05 04:30:59,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6237113402061856) internal successors, (315), 194 states have internal predecessors, (315), 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 04:30:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 319 transitions. [2022-04-05 04:30:59,981 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 319 transitions. Word has length 51 [2022-04-05 04:30:59,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:30:59,981 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 319 transitions. [2022-04-05 04:30:59,981 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:30:59,981 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 319 transitions. [2022-04-05 04:30:59,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-04-05 04:30:59,982 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:30:59,983 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:30:59,983 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-05 04:30:59,983 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:30:59,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:30:59,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1001940347, now seen corresponding path program 1 times [2022-04-05 04:30:59,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:30:59,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783003104] [2022-04-05 04:30:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:30:59,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:00,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:00,144 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 04:31:00,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:00,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783003104] [2022-04-05 04:31:00,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783003104] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:00,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:00,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:00,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583468187] [2022-04-05 04:31:00,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:00,145 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:00,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:00,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:00,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:00,146 INFO L87 Difference]: Start difference. First operand 199 states and 319 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 04:31:02,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:04,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:05,671 WARN L534 Checker$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 04:31:06,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:06,031 INFO L93 Difference]: Finished difference Result 216 states and 339 transitions. [2022-04-05 04:31:06,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:06,032 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 04:31:06,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:06,033 INFO L225 Difference]: With dead ends: 216 [2022-04-05 04:31:06,033 INFO L226 Difference]: Without dead ends: 216 [2022-04-05 04:31:06,033 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 04:31:06,034 INFO L913 BasicCegarLoop]: 199 mSDtfsCounter, 24 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:06,035 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 519 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 04:31:06,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-04-05 04:31:06,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 199. [2022-04-05 04:31:06,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6185567010309279) internal successors, (314), 194 states have internal predecessors, (314), 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 04:31:06,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 318 transitions. [2022-04-05 04:31:06,041 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 318 transitions. Word has length 64 [2022-04-05 04:31:06,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:06,041 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 318 transitions. [2022-04-05 04:31:06,042 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 04:31:06,042 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 318 transitions. [2022-04-05 04:31:06,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:31:06,043 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:06,043 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:06,043 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-05 04:31:06,043 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:06,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:06,044 INFO L85 PathProgramCache]: Analyzing trace with hash -853695767, now seen corresponding path program 1 times [2022-04-05 04:31:06,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:06,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031145744] [2022-04-05 04:31:06,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:06,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:06,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:06,211 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 04:31:06,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:06,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031145744] [2022-04-05 04:31:06,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031145744] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:06,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:06,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:06,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119944053] [2022-04-05 04:31:06,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:06,212 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:06,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:06,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:06,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:06,213 INFO L87 Difference]: Start difference. First operand 199 states and 318 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 04:31:08,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:11,324 WARN L534 Checker$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 04:31:11,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:11,712 INFO L93 Difference]: Finished difference Result 215 states and 337 transitions. [2022-04-05 04:31:11,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:11,712 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 04:31:11,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:11,713 INFO L225 Difference]: With dead ends: 215 [2022-04-05 04:31:11,713 INFO L226 Difference]: Without dead ends: 215 [2022-04-05 04:31:11,713 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:31:11,714 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 28 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:11,714 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 521 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 04:31:11,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-04-05 04:31:11,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 199. [2022-04-05 04:31:11,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 194 states have (on average 1.6134020618556701) internal successors, (313), 194 states have internal predecessors, (313), 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 04:31:11,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 317 transitions. [2022-04-05 04:31:11,720 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 317 transitions. Word has length 65 [2022-04-05 04:31:11,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:11,720 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 317 transitions. [2022-04-05 04:31:11,720 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 04:31:11,720 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 317 transitions. [2022-04-05 04:31:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:31:11,721 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:11,721 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:11,722 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-05 04:31:11,722 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:11,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:11,722 INFO L85 PathProgramCache]: Analyzing trace with hash 108125897, now seen corresponding path program 1 times [2022-04-05 04:31:11,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:11,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262314548] [2022-04-05 04:31:11,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:11,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:11,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:11,874 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 04:31:11,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:11,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262314548] [2022-04-05 04:31:11,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262314548] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:11,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:11,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:11,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960900834] [2022-04-05 04:31:11,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:11,876 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:11,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:11,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:11,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:11,877 INFO L87 Difference]: Start difference. First operand 199 states and 317 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 04:31:13,884 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 04:31:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:14,397 INFO L93 Difference]: Finished difference Result 323 states and 510 transitions. [2022-04-05 04:31:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:14,398 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 04:31:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:14,399 INFO L225 Difference]: With dead ends: 323 [2022-04-05 04:31:14,399 INFO L226 Difference]: Without dead ends: 323 [2022-04-05 04:31:14,400 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 04:31:14,402 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 161 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:14,402 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 380 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:31:14,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2022-04-05 04:31:14,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 211. [2022-04-05 04:31:14,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 206 states have (on average 1.5970873786407767) internal successors, (329), 206 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:31:14,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 333 transitions. [2022-04-05 04:31:14,408 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 333 transitions. Word has length 65 [2022-04-05 04:31:14,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:14,408 INFO L478 AbstractCegarLoop]: Abstraction has 211 states and 333 transitions. [2022-04-05 04:31:14,408 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 04:31:14,408 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 333 transitions. [2022-04-05 04:31:14,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:31:14,409 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:14,409 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:14,409 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-05 04:31:14,410 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:14,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:14,410 INFO L85 PathProgramCache]: Analyzing trace with hash -236581015, now seen corresponding path program 1 times [2022-04-05 04:31:14,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:14,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621253892] [2022-04-05 04:31:14,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:14,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:14,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:14,514 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 04:31:14,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:14,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621253892] [2022-04-05 04:31:14,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621253892] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:14,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:14,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:14,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232182904] [2022-04-05 04:31:14,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:14,519 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:14,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:14,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:14,520 INFO L87 Difference]: Start difference. First operand 211 states and 333 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 04:31:17,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:17,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:17,857 INFO L93 Difference]: Finished difference Result 322 states and 506 transitions. [2022-04-05 04:31:17,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:17,858 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 04:31:17,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:17,859 INFO L225 Difference]: With dead ends: 322 [2022-04-05 04:31:17,859 INFO L226 Difference]: Without dead ends: 322 [2022-04-05 04:31:17,859 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 04:31:17,860 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 154 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:17,860 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-04-05 04:31:17,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-04-05 04:31:17,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-04-05 04:31:17,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5943396226415094) internal successors, (338), 212 states have internal predecessors, (338), 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 04:31:17,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 342 transitions. [2022-04-05 04:31:17,865 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 342 transitions. Word has length 65 [2022-04-05 04:31:17,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:17,866 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 342 transitions. [2022-04-05 04:31:17,866 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 04:31:17,866 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 342 transitions. [2022-04-05 04:31:17,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-04-05 04:31:17,867 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:17,867 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:17,867 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-05 04:31:17,867 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:17,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:17,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1695836809, now seen corresponding path program 1 times [2022-04-05 04:31:17,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:17,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546693872] [2022-04-05 04:31:17,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:17,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:17,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:17,971 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 04:31:17,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:17,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546693872] [2022-04-05 04:31:17,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546693872] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:17,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:17,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:17,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574243016] [2022-04-05 04:31:17,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:17,972 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:17,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:17,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:17,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:17,972 INFO L87 Difference]: Start difference. First operand 217 states and 342 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 04:31:19,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:21,134 WARN L534 Checker$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 04:31:23,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:25,180 WARN L534 Checker$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 04:31:25,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:25,494 INFO L93 Difference]: Finished difference Result 230 states and 358 transitions. [2022-04-05 04:31:25,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:25,494 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 04:31:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:25,496 INFO L225 Difference]: With dead ends: 230 [2022-04-05 04:31:25,496 INFO L226 Difference]: Without dead ends: 230 [2022-04-05 04:31:25,496 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 04:31:25,496 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 19 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:25,497 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 365 Invalid, 3 Unknown, 0 Unchecked, 7.5s Time] [2022-04-05 04:31:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-04-05 04:31:25,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-04-05 04:31:25,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5896226415094339) internal successors, (337), 212 states have internal predecessors, (337), 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 04:31:25,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 341 transitions. [2022-04-05 04:31:25,501 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 341 transitions. Word has length 65 [2022-04-05 04:31:25,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:25,501 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 341 transitions. [2022-04-05 04:31:25,501 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 04:31:25,501 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 341 transitions. [2022-04-05 04:31:25,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-04-05 04:31:25,502 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:25,502 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:25,502 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-05 04:31:25,502 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:25,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1137620101, now seen corresponding path program 1 times [2022-04-05 04:31:25,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:25,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633195068] [2022-04-05 04:31:25,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:25,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:25,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:25,601 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 04:31:25,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:25,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633195068] [2022-04-05 04:31:25,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633195068] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:25,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:25,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:25,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344085315] [2022-04-05 04:31:25,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:25,602 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:25,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:25,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:25,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:25,603 INFO L87 Difference]: Start difference. First operand 217 states and 341 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 04:31:27,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:29,987 WARN L534 Checker$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 04:31:32,012 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 04:31:32,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:32,456 INFO L93 Difference]: Finished difference Result 322 states and 502 transitions. [2022-04-05 04:31:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:32,457 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 04:31:32,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:32,458 INFO L225 Difference]: With dead ends: 322 [2022-04-05 04:31:32,458 INFO L226 Difference]: Without dead ends: 322 [2022-04-05 04:31:32,459 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 04:31:32,459 INFO L913 BasicCegarLoop]: 131 mSDtfsCounter, 158 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 63 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:32,459 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 382 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 485 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2022-04-05 04:31:32,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-04-05 04:31:32,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 217. [2022-04-05 04:31:32,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5754716981132075) internal successors, (334), 212 states have internal predecessors, (334), 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 04:31:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 338 transitions. [2022-04-05 04:31:32,464 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 338 transitions. Word has length 66 [2022-04-05 04:31:32,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:32,464 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 338 transitions. [2022-04-05 04:31:32,464 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 04:31:32,464 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 338 transitions. [2022-04-05 04:31:32,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-04-05 04:31:32,465 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:32,465 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:32,465 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-05 04:31:32,465 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:32,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1724441147, now seen corresponding path program 1 times [2022-04-05 04:31:32,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:32,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054368444] [2022-04-05 04:31:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:32,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:32,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:32,554 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 04:31:32,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:32,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054368444] [2022-04-05 04:31:32,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054368444] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:32,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:32,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:32,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064677507] [2022-04-05 04:31:32,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:32,555 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:32,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:32,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:32,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:32,557 INFO L87 Difference]: Start difference. First operand 217 states and 338 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 04:31:35,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:36,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:36,004 INFO L93 Difference]: Finished difference Result 230 states and 354 transitions. [2022-04-05 04:31:36,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:36,005 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 04:31:36,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:36,005 INFO L225 Difference]: With dead ends: 230 [2022-04-05 04:31:36,006 INFO L226 Difference]: Without dead ends: 230 [2022-04-05 04:31:36,006 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 04:31:36,006 INFO L913 BasicCegarLoop]: 203 mSDtfsCounter, 20 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:36,006 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 527 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-04-05 04:31:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2022-04-05 04:31:36,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 217. [2022-04-05 04:31:36,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.570754716981132) internal successors, (333), 212 states have internal predecessors, (333), 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 04:31:36,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 337 transitions. [2022-04-05 04:31:36,010 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 337 transitions. Word has length 67 [2022-04-05 04:31:36,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:36,011 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 337 transitions. [2022-04-05 04:31:36,011 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 04:31:36,011 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 337 transitions. [2022-04-05 04:31:36,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:31:36,011 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:36,011 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:36,012 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-05 04:31:36,012 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:36,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:36,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1640250846, now seen corresponding path program 1 times [2022-04-05 04:31:36,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:36,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3762211] [2022-04-05 04:31:36,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:36,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:36,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:36,111 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 04:31:36,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:36,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3762211] [2022-04-05 04:31:36,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3762211] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:36,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:36,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:36,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104477893] [2022-04-05 04:31:36,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:36,119 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:36,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:36,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:36,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:36,120 INFO L87 Difference]: Start difference. First operand 217 states and 337 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:31:38,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:40,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:41,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:41,894 INFO L93 Difference]: Finished difference Result 220 states and 340 transitions. [2022-04-05 04:31:41,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:41,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-05 04:31:41,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:41,895 INFO L225 Difference]: With dead ends: 220 [2022-04-05 04:31:41,895 INFO L226 Difference]: Without dead ends: 220 [2022-04-05 04:31:41,895 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 04:31:41,896 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 11 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:41,896 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 541 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 04:31:41,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-04-05 04:31:41,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 217. [2022-04-05 04:31:41,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 212 states have (on average 1.5660377358490567) internal successors, (332), 212 states have internal predecessors, (332), 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 04:31:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 336 transitions. [2022-04-05 04:31:41,899 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 336 transitions. Word has length 68 [2022-04-05 04:31:41,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:41,900 INFO L478 AbstractCegarLoop]: Abstraction has 217 states and 336 transitions. [2022-04-05 04:31:41,900 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:31:41,900 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 336 transitions. [2022-04-05 04:31:41,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-05 04:31:41,900 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:41,900 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:41,900 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-05 04:31:41,901 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:41,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash 628685139, now seen corresponding path program 1 times [2022-04-05 04:31:41,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:41,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564466194] [2022-04-05 04:31:41,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:41,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:42,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:42,040 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 04:31:42,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:42,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564466194] [2022-04-05 04:31:42,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564466194] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:42,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:42,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:42,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23357422] [2022-04-05 04:31:42,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:42,041 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:42,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:42,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:42,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:42,042 INFO L87 Difference]: Start difference. First operand 217 states and 336 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:31:45,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:47,551 WARN L534 Checker$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 04:31:48,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:48,037 INFO L93 Difference]: Finished difference Result 322 states and 499 transitions. [2022-04-05 04:31:48,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:48,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-05 04:31:48,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:48,041 INFO L225 Difference]: With dead ends: 322 [2022-04-05 04:31:48,041 INFO L226 Difference]: Without dead ends: 322 [2022-04-05 04:31:48,041 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 04:31:48,041 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 131 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:48,042 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 04:31:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2022-04-05 04:31:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 239. [2022-04-05 04:31:48,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 234 states have (on average 1.6025641025641026) internal successors, (375), 234 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 04:31:48,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 379 transitions. [2022-04-05 04:31:48,046 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 379 transitions. Word has length 68 [2022-04-05 04:31:48,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:48,046 INFO L478 AbstractCegarLoop]: Abstraction has 239 states and 379 transitions. [2022-04-05 04:31:48,046 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:31:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 379 transitions. [2022-04-05 04:31:48,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-04-05 04:31:48,047 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:48,047 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:48,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-05 04:31:48,047 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:48,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash -486685090, now seen corresponding path program 1 times [2022-04-05 04:31:48,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:48,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868024298] [2022-04-05 04:31:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:48,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-04-05 04:31:48,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:48,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868024298] [2022-04-05 04:31:48,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868024298] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:48,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:48,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:48,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250630131] [2022-04-05 04:31:48,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:48,186 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:48,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:48,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:48,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:48,187 INFO L87 Difference]: Start difference. First operand 239 states and 379 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:31:49,363 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:51,381 WARN L534 Checker$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 04:31:53,404 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:31:55,428 WARN L534 Checker$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 04:31:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:31:55,767 INFO L93 Difference]: Finished difference Result 281 states and 440 transitions. [2022-04-05 04:31:55,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:31:55,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-04-05 04:31:55,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:31:55,781 INFO L225 Difference]: With dead ends: 281 [2022-04-05 04:31:55,781 INFO L226 Difference]: Without dead ends: 281 [2022-04-05 04:31:55,781 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 04:31:55,781 INFO L913 BasicCegarLoop]: 207 mSDtfsCounter, 31 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:31:55,781 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 541 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 405 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2022-04-05 04:31:55,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-04-05 04:31:55,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 261. [2022-04-05 04:31:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 256 states have (on average 1.6015625) internal successors, (410), 256 states have internal predecessors, (410), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:31:55,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 414 transitions. [2022-04-05 04:31:55,785 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 414 transitions. Word has length 96 [2022-04-05 04:31:55,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:31:55,786 INFO L478 AbstractCegarLoop]: Abstraction has 261 states and 414 transitions. [2022-04-05 04:31:55,786 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:31:55,786 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 414 transitions. [2022-04-05 04:31:55,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-04-05 04:31:55,786 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:31:55,786 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:31:55,787 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-05 04:31:55,787 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:31:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:31:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash 818702560, now seen corresponding path program 1 times [2022-04-05 04:31:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:31:55,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790289945] [2022-04-05 04:31:55,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:31:55,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:31:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:55,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:31:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:31:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:31:55,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:31:55,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790289945] [2022-04-05 04:31:55,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790289945] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:31:55,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:31:55,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:31:55,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704380823] [2022-04-05 04:31:55,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:31:55,899 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:31:55,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:31:55,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:31:55,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:31:55,900 INFO L87 Difference]: Start difference. First operand 261 states and 414 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 04:31:59,647 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 04:32:00,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:00,199 INFO L93 Difference]: Finished difference Result 384 states and 601 transitions. [2022-04-05 04:32:00,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:00,199 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 109 [2022-04-05 04:32:00,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:00,201 INFO L225 Difference]: With dead ends: 384 [2022-04-05 04:32:00,201 INFO L226 Difference]: Without dead ends: 384 [2022-04-05 04:32:00,201 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 04:32:00,202 INFO L913 BasicCegarLoop]: 260 mSDtfsCounter, 154 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:00,202 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 640 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 619 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 04:32:00,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-04-05 04:32:00,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 277. [2022-04-05 04:32:00,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.588235294117647) internal successors, (432), 272 states have internal predecessors, (432), 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 04:32:00,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 436 transitions. [2022-04-05 04:32:00,208 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 436 transitions. Word has length 109 [2022-04-05 04:32:00,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:00,209 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 436 transitions. [2022-04-05 04:32:00,209 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 04:32:00,209 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 436 transitions. [2022-04-05 04:32:00,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 04:32:00,210 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:00,210 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:32:00,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-04-05 04:32:00,210 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:00,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:00,210 INFO L85 PathProgramCache]: Analyzing trace with hash -709493596, now seen corresponding path program 1 times [2022-04-05 04:32:00,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:00,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453991853] [2022-04-05 04:32:00,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:00,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-04-05 04:32:00,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:00,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453991853] [2022-04-05 04:32:00,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453991853] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:00,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:00,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:00,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145542689] [2022-04-05 04:32:00,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:00,348 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:00,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:00,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:00,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:00,349 INFO L87 Difference]: Start difference. First operand 277 states and 436 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:01,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:04,548 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 04:32:04,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:04,925 INFO L93 Difference]: Finished difference Result 290 states and 451 transitions. [2022-04-05 04:32:04,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:04,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-05 04:32:04,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:04,927 INFO L225 Difference]: With dead ends: 290 [2022-04-05 04:32:04,927 INFO L226 Difference]: Without dead ends: 290 [2022-04-05 04:32:04,927 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 04:32:04,927 INFO L913 BasicCegarLoop]: 242 mSDtfsCounter, 20 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:04,927 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 610 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-04-05 04:32:04,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-04-05 04:32:04,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 277. [2022-04-05 04:32:04,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5845588235294117) internal successors, (431), 272 states have internal predecessors, (431), 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 04:32:04,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 435 transitions. [2022-04-05 04:32:04,931 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 435 transitions. Word has length 110 [2022-04-05 04:32:04,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:04,931 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 435 transitions. [2022-04-05 04:32:04,931 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 435 transitions. [2022-04-05 04:32:04,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-04-05 04:32:04,932 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:04,932 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:32:04,932 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-04-05 04:32:04,932 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:04,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:04,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1832588356, now seen corresponding path program 1 times [2022-04-05 04:32:04,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:04,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352611540] [2022-04-05 04:32:04,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:04,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:05,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:05,019 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:32:05,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:05,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352611540] [2022-04-05 04:32:05,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352611540] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:05,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:05,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:05,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816470909] [2022-04-05 04:32:05,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:05,020 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:05,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:05,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:05,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:05,020 INFO L87 Difference]: Start difference. First operand 277 states and 435 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 04:32:06,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:08,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:09,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:10,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:10,193 INFO L93 Difference]: Finished difference Result 360 states and 552 transitions. [2022-04-05 04:32:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:10,194 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-04-05 04:32:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:10,195 INFO L225 Difference]: With dead ends: 360 [2022-04-05 04:32:10,195 INFO L226 Difference]: Without dead ends: 360 [2022-04-05 04:32:10,195 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 04:32:10,195 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 153 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:10,195 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 04:32:10,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-04-05 04:32:10,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 277. [2022-04-05 04:32:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 272 states have (on average 1.5735294117647058) internal successors, (428), 272 states have internal predecessors, (428), 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 04:32:10,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 432 transitions. [2022-04-05 04:32:10,199 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 432 transitions. Word has length 110 [2022-04-05 04:32:10,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:10,200 INFO L478 AbstractCegarLoop]: Abstraction has 277 states and 432 transitions. [2022-04-05 04:32:10,200 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 04:32:10,200 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 432 transitions. [2022-04-05 04:32:10,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-04-05 04:32:10,200 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:10,200 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:32:10,201 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-04-05 04:32:10,201 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:10,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:10,201 INFO L85 PathProgramCache]: Analyzing trace with hash -570233019, now seen corresponding path program 1 times [2022-04-05 04:32:10,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:10,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297920335] [2022-04-05 04:32:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:10,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:10,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-04-05 04:32:10,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:10,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297920335] [2022-04-05 04:32:10,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297920335] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:10,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:10,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:32:10,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824434680] [2022-04-05 04:32:10,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:10,331 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:32:10,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:10,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:32:10,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:32:10,331 INFO L87 Difference]: Start difference. First operand 277 states and 432 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:12,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:13,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:16,187 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 04:32:16,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:16,555 INFO L93 Difference]: Finished difference Result 286 states and 443 transitions. [2022-04-05 04:32:16,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-05 04:32:16,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-04-05 04:32:16,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:16,556 INFO L225 Difference]: With dead ends: 286 [2022-04-05 04:32:16,556 INFO L226 Difference]: Without dead ends: 286 [2022-04-05 04:32:16,556 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 04:32:16,557 INFO L913 BasicCegarLoop]: 215 mSDtfsCounter, 3 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:16,557 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 681 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 447 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-04-05 04:32:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-04-05 04:32:16,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-04-05 04:32:16,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5622775800711743) internal successors, (439), 281 states have internal predecessors, (439), 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 04:32:16,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 443 transitions. [2022-04-05 04:32:16,561 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 443 transitions. Word has length 111 [2022-04-05 04:32:16,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:16,561 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 443 transitions. [2022-04-05 04:32:16,561 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 443 transitions. [2022-04-05 04:32:16,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-05 04:32:16,562 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:16,562 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:32:16,562 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-04-05 04:32:16,562 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:16,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:16,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1550147049, now seen corresponding path program 1 times [2022-04-05 04:32:16,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:16,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857233220] [2022-04-05 04:32:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:16,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:16,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:16,644 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:32:16,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:16,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857233220] [2022-04-05 04:32:16,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857233220] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:16,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:16,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:16,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835221268] [2022-04-05 04:32:16,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:16,645 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:16,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:16,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:16,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:16,645 INFO L87 Difference]: Start difference. First operand 286 states and 443 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:18,201 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:19,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:21,844 WARN L534 Checker$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 04:32:22,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:22,176 INFO L93 Difference]: Finished difference Result 313 states and 477 transitions. [2022-04-05 04:32:22,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:22,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-04-05 04:32:22,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:22,178 INFO L225 Difference]: With dead ends: 313 [2022-04-05 04:32:22,178 INFO L226 Difference]: Without dead ends: 313 [2022-04-05 04:32:22,178 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 04:32:22,178 INFO L913 BasicCegarLoop]: 210 mSDtfsCounter, 36 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:22,178 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 545 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 402 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-04-05 04:32:22,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-04-05 04:32:22,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 286. [2022-04-05 04:32:22,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5587188612099645) internal successors, (438), 281 states have internal predecessors, (438), 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 04:32:22,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 442 transitions. [2022-04-05 04:32:22,182 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 442 transitions. Word has length 113 [2022-04-05 04:32:22,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:22,183 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 442 transitions. [2022-04-05 04:32:22,183 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:22,183 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 442 transitions. [2022-04-05 04:32:22,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-04-05 04:32:22,183 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:22,184 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:22,184 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-04-05 04:32:22,184 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:22,184 INFO L85 PathProgramCache]: Analyzing trace with hash 373566476, now seen corresponding path program 1 times [2022-04-05 04:32:22,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:22,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768750447] [2022-04-05 04:32:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:22,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:22,263 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-04-05 04:32:22,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:22,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768750447] [2022-04-05 04:32:22,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768750447] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:22,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:22,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:22,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733679524] [2022-04-05 04:32:22,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:22,263 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:22,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:22,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:22,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:22,264 INFO L87 Difference]: Start difference. First operand 286 states and 442 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:24,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:26,473 WARN L534 Checker$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 04:32:27,543 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 04:32:27,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:27,992 INFO L93 Difference]: Finished difference Result 378 states and 569 transitions. [2022-04-05 04:32:27,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:27,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 114 [2022-04-05 04:32:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:27,994 INFO L225 Difference]: With dead ends: 378 [2022-04-05 04:32:27,994 INFO L226 Difference]: Without dead ends: 378 [2022-04-05 04:32:27,994 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 04:32:27,994 INFO L913 BasicCegarLoop]: 142 mSDtfsCounter, 154 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:27,995 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 404 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 04:32:27,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2022-04-05 04:32:27,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 286. [2022-04-05 04:32:27,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 281 states have (on average 1.5444839857651245) internal successors, (434), 281 states have internal predecessors, (434), 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 04:32:27,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 438 transitions. [2022-04-05 04:32:27,999 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 438 transitions. Word has length 114 [2022-04-05 04:32:27,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:27,999 INFO L478 AbstractCegarLoop]: Abstraction has 286 states and 438 transitions. [2022-04-05 04:32:27,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:27,999 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 438 transitions. [2022-04-05 04:32:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-05 04:32:28,000 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:28,000 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:32:28,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-04-05 04:32:28,000 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:28,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1630354749, now seen corresponding path program 1 times [2022-04-05 04:32:28,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:28,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010768848] [2022-04-05 04:32:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:28,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:28,094 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 04:32:28,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:28,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010768848] [2022-04-05 04:32:28,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010768848] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:28,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:28,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:28,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118136555] [2022-04-05 04:32:28,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:28,094 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:28,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:28,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:28,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:28,095 INFO L87 Difference]: Start difference. First operand 286 states and 438 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 04:32:30,506 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 04:32:32,221 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 04:32:33,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:33,230 INFO L93 Difference]: Finished difference Result 454 states and 697 transitions. [2022-04-05 04:32:33,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:33,230 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 118 [2022-04-05 04:32:33,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:33,232 INFO L225 Difference]: With dead ends: 454 [2022-04-05 04:32:33,232 INFO L226 Difference]: Without dead ends: 454 [2022-04-05 04:32:33,232 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 04:32:33,232 INFO L913 BasicCegarLoop]: 148 mSDtfsCounter, 135 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:33,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 416 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 04:32:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2022-04-05 04:32:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 350. [2022-04-05 04:32:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5594202898550724) internal successors, (538), 345 states have internal predecessors, (538), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 542 transitions. [2022-04-05 04:32:33,237 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 542 transitions. Word has length 118 [2022-04-05 04:32:33,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:33,237 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 542 transitions. [2022-04-05 04:32:33,237 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 04:32:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 542 transitions. [2022-04-05 04:32:33,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-05 04:32:33,238 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:33,238 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:32:33,239 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-04-05 04:32:33,239 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:33,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:33,239 INFO L85 PathProgramCache]: Analyzing trace with hash -197061542, now seen corresponding path program 1 times [2022-04-05 04:32:33,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:33,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24474117] [2022-04-05 04:32:33,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:33,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-04-05 04:32:33,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:33,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24474117] [2022-04-05 04:32:33,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24474117] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:33,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:33,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:33,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102165212] [2022-04-05 04:32:33,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:33,339 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:33,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:33,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:33,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:33,339 INFO L87 Difference]: Start difference. First operand 350 states and 542 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:34,418 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 04:32:36,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:38,335 WARN L534 Checker$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 04:32:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:38,647 INFO L93 Difference]: Finished difference Result 357 states and 551 transitions. [2022-04-05 04:32:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:38,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-05 04:32:38,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:38,649 INFO L225 Difference]: With dead ends: 357 [2022-04-05 04:32:38,649 INFO L226 Difference]: Without dead ends: 357 [2022-04-05 04:32:38,649 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 04:32:38,650 INFO L913 BasicCegarLoop]: 218 mSDtfsCounter, 30 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:38,650 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 561 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 04:32:38,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-04-05 04:32:38,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 350. [2022-04-05 04:32:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 345 states have (on average 1.5565217391304347) internal successors, (537), 345 states have internal predecessors, (537), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:38,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 541 transitions. [2022-04-05 04:32:38,654 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 541 transitions. Word has length 123 [2022-04-05 04:32:38,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:38,655 INFO L478 AbstractCegarLoop]: Abstraction has 350 states and 541 transitions. [2022-04-05 04:32:38,655 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:38,655 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 541 transitions. [2022-04-05 04:32:38,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-04-05 04:32:38,656 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:38,656 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, 1, 1] [2022-04-05 04:32:38,656 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-04-05 04:32:38,656 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:38,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:38,656 INFO L85 PathProgramCache]: Analyzing trace with hash -337214073, now seen corresponding path program 1 times [2022-04-05 04:32:38,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:38,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898712143] [2022-04-05 04:32:38,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:38,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:38,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:38,783 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 04:32:38,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:38,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898712143] [2022-04-05 04:32:38,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898712143] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:38,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:38,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:38,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965524402] [2022-04-05 04:32:38,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:38,784 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:38,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:38,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:38,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:38,785 INFO L87 Difference]: Start difference. First operand 350 states and 541 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 04:32:40,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:42,183 WARN L534 Checker$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 04:32:44,202 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 04:32:44,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:44,611 INFO L93 Difference]: Finished difference Result 482 states and 736 transitions. [2022-04-05 04:32:44,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:44,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2022-04-05 04:32:44,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:44,612 INFO L225 Difference]: With dead ends: 482 [2022-04-05 04:32:44,612 INFO L226 Difference]: Without dead ends: 482 [2022-04-05 04:32:44,613 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 04:32:44,613 INFO L913 BasicCegarLoop]: 130 mSDtfsCounter, 131 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:44,613 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 380 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 04:32:44,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-04-05 04:32:44,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 387. [2022-04-05 04:32:44,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 382 states have (on average 1.5628272251308901) internal successors, (597), 382 states have internal predecessors, (597), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:44,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 601 transitions. [2022-04-05 04:32:44,618 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 601 transitions. Word has length 124 [2022-04-05 04:32:44,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:44,618 INFO L478 AbstractCegarLoop]: Abstraction has 387 states and 601 transitions. [2022-04-05 04:32:44,618 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 04:32:44,619 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 601 transitions. [2022-04-05 04:32:44,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-05 04:32:44,619 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:44,619 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, 1, 1] [2022-04-05 04:32:44,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-04-05 04:32:44,620 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:44,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:44,620 INFO L85 PathProgramCache]: Analyzing trace with hash 492972657, now seen corresponding path program 1 times [2022-04-05 04:32:44,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:44,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102988576] [2022-04-05 04:32:44,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:44,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:44,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:44,716 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 04:32:44,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:44,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102988576] [2022-04-05 04:32:44,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102988576] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:44,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:44,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:44,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714121407] [2022-04-05 04:32:44,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:44,717 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:44,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:44,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:44,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:44,717 INFO L87 Difference]: Start difference. First operand 387 states and 601 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:46,157 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:47,224 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 04:32:48,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:48,891 INFO L93 Difference]: Finished difference Result 491 states and 754 transitions. [2022-04-05 04:32:48,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:48,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-05 04:32:48,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:48,895 INFO L225 Difference]: With dead ends: 491 [2022-04-05 04:32:48,895 INFO L226 Difference]: Without dead ends: 491 [2022-04-05 04:32:48,895 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 04:32:48,896 INFO L913 BasicCegarLoop]: 192 mSDtfsCounter, 83 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:48,896 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 511 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-04-05 04:32:48,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-04-05 04:32:48,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 427. [2022-04-05 04:32:48,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 422 states have (on average 1.566350710900474) internal successors, (661), 422 states have internal predecessors, (661), 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 04:32:48,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 665 transitions. [2022-04-05 04:32:48,902 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 665 transitions. Word has length 125 [2022-04-05 04:32:48,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:48,902 INFO L478 AbstractCegarLoop]: Abstraction has 427 states and 665 transitions. [2022-04-05 04:32:48,902 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:48,902 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 665 transitions. [2022-04-05 04:32:48,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-04-05 04:32:48,903 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:48,903 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, 1, 1] [2022-04-05 04:32:48,904 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-04-05 04:32:48,904 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:48,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:48,904 INFO L85 PathProgramCache]: Analyzing trace with hash 506505458, now seen corresponding path program 1 times [2022-04-05 04:32:48,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:48,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483964032] [2022-04-05 04:32:48,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:48,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:48,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:48,995 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-04-05 04:32:48,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:48,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483964032] [2022-04-05 04:32:48,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483964032] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:48,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:48,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:48,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534013462] [2022-04-05 04:32:48,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:48,996 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:48,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:48,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:48,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:48,996 INFO L87 Difference]: Start difference. First operand 427 states and 665 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:51,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:52,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:54,407 WARN L534 Checker$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 04:32:54,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:32:54,766 INFO L93 Difference]: Finished difference Result 483 states and 743 transitions. [2022-04-05 04:32:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:32:54,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2022-04-05 04:32:54,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:32:54,773 INFO L225 Difference]: With dead ends: 483 [2022-04-05 04:32:54,773 INFO L226 Difference]: Without dead ends: 483 [2022-04-05 04:32:54,773 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 04:32:54,773 INFO L913 BasicCegarLoop]: 257 mSDtfsCounter, 36 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:32:54,776 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 639 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 472 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-04-05 04:32:54,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2022-04-05 04:32:54,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 451. [2022-04-05 04:32:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 446 states have (on average 1.562780269058296) internal successors, (697), 446 states have internal predecessors, (697), 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 04:32:54,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 701 transitions. [2022-04-05 04:32:54,782 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 701 transitions. Word has length 125 [2022-04-05 04:32:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:32:54,782 INFO L478 AbstractCegarLoop]: Abstraction has 451 states and 701 transitions. [2022-04-05 04:32:54,782 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:32:54,782 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 701 transitions. [2022-04-05 04:32:54,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-04-05 04:32:54,783 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:32:54,783 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 04:32:54,783 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-04-05 04:32:54,783 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:32:54,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:32:54,783 INFO L85 PathProgramCache]: Analyzing trace with hash 2113567405, now seen corresponding path program 1 times [2022-04-05 04:32:54,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:32:54,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336512031] [2022-04-05 04:32:54,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:32:54,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:32:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:54,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:32:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:32:54,885 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 04:32:54,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:32:54,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336512031] [2022-04-05 04:32:54,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336512031] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:32:54,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:32:54,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:32:54,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494704318] [2022-04-05 04:32:54,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:32:54,886 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:32:54,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:32:54,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:32:54,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:32:54,886 INFO L87 Difference]: Start difference. First operand 451 states and 701 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 04:32:56,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:32:58,404 WARN L534 Checker$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 04:33:00,432 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 04:33:00,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:00,811 INFO L93 Difference]: Finished difference Result 508 states and 778 transitions. [2022-04-05 04:33:00,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:00,811 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 04:33:00,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:00,813 INFO L225 Difference]: With dead ends: 508 [2022-04-05 04:33:00,813 INFO L226 Difference]: Without dead ends: 508 [2022-04-05 04:33:00,813 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 04:33:00,813 INFO L913 BasicCegarLoop]: 195 mSDtfsCounter, 69 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:00,814 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 517 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-04-05 04:33:00,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-04-05 04:33:00,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 454. [2022-04-05 04:33:00,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.55902004454343) internal successors, (700), 449 states have internal predecessors, (700), 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 04:33:00,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 704 transitions. [2022-04-05 04:33:00,819 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 704 transitions. Word has length 132 [2022-04-05 04:33:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:00,819 INFO L478 AbstractCegarLoop]: Abstraction has 454 states and 704 transitions. [2022-04-05 04:33:00,820 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 04:33:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 704 transitions. [2022-04-05 04:33:00,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-04-05 04:33:00,821 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:00,821 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 5, 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, 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 04:33:00,821 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-04-05 04:33:00,821 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:00,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:00,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1898923484, now seen corresponding path program 1 times [2022-04-05 04:33:00,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:00,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592724895] [2022-04-05 04:33:00,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:00,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:00,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:00,913 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:33:00,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:00,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592724895] [2022-04-05 04:33:00,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592724895] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:00,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:00,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:00,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919247850] [2022-04-05 04:33:00,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:00,914 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:00,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:00,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:00,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:00,914 INFO L87 Difference]: Start difference. First operand 454 states and 704 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 04:33:02,775 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 04:33:04,443 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:06,502 WARN L534 Checker$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 04:33:06,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:06,927 INFO L93 Difference]: Finished difference Result 536 states and 814 transitions. [2022-04-05 04:33:06,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:06,927 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 142 [2022-04-05 04:33:06,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:06,929 INFO L225 Difference]: With dead ends: 536 [2022-04-05 04:33:06,929 INFO L226 Difference]: Without dead ends: 536 [2022-04-05 04:33:06,929 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 04:33:06,930 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 153 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:06,930 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 406 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 04:33:06,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2022-04-05 04:33:06,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 454. [2022-04-05 04:33:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.5412026726057906) internal successors, (692), 449 states have internal predecessors, (692), 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 04:33:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 696 transitions. [2022-04-05 04:33:06,952 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 696 transitions. Word has length 142 [2022-04-05 04:33:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:06,953 INFO L478 AbstractCegarLoop]: Abstraction has 454 states and 696 transitions. [2022-04-05 04:33:06,953 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 04:33:06,953 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 696 transitions. [2022-04-05 04:33:06,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 04:33:06,954 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:06,954 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, 1] [2022-04-05 04:33:06,954 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-04-05 04:33:06,954 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:06,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:06,955 INFO L85 PathProgramCache]: Analyzing trace with hash 808274459, now seen corresponding path program 1 times [2022-04-05 04:33:06,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:06,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052696677] [2022-04-05 04:33:06,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:06,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:07,060 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 04:33:07,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:07,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052696677] [2022-04-05 04:33:07,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052696677] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:07,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:07,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:07,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57082845] [2022-04-05 04:33:07,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:07,061 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:07,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:07,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:07,062 INFO L87 Difference]: Start difference. First operand 454 states and 696 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 04:33:08,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:10,674 WARN L534 Checker$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 04:33:12,695 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 04:33:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:13,088 INFO L93 Difference]: Finished difference Result 488 states and 744 transitions. [2022-04-05 04:33:13,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:13,088 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 145 [2022-04-05 04:33:13,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:13,089 INFO L225 Difference]: With dead ends: 488 [2022-04-05 04:33:13,089 INFO L226 Difference]: Without dead ends: 488 [2022-04-05 04:33:13,090 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 04:33:13,090 INFO L913 BasicCegarLoop]: 204 mSDtfsCounter, 90 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:13,090 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 533 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 492 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2022-04-05 04:33:13,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-04-05 04:33:13,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 454. [2022-04-05 04:33:13,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 449 states have (on average 1.5389755011135857) internal successors, (691), 449 states have internal predecessors, (691), 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 04:33:13,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 695 transitions. [2022-04-05 04:33:13,095 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 695 transitions. Word has length 145 [2022-04-05 04:33:13,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:13,095 INFO L478 AbstractCegarLoop]: Abstraction has 454 states and 695 transitions. [2022-04-05 04:33:13,095 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 04:33:13,095 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 695 transitions. [2022-04-05 04:33:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 04:33:13,096 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:13,096 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, 1] [2022-04-05 04:33:13,096 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-04-05 04:33:13,096 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:13,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:13,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1595144559, now seen corresponding path program 1 times [2022-04-05 04:33:13,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:13,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667796] [2022-04-05 04:33:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:13,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:13,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:13,187 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 04:33:13,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:13,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667796] [2022-04-05 04:33:13,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667796] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:13,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:13,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:13,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814232619] [2022-04-05 04:33:13,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:13,188 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:13,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:13,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:13,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:13,188 INFO L87 Difference]: Start difference. First operand 454 states and 695 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 04:33:14,384 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:16,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:18,433 WARN L534 Checker$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 04:33:19,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:19,797 INFO L93 Difference]: Finished difference Result 576 states and 871 transitions. [2022-04-05 04:33:19,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:19,797 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 04:33:19,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:19,799 INFO L225 Difference]: With dead ends: 576 [2022-04-05 04:33:19,799 INFO L226 Difference]: Without dead ends: 576 [2022-04-05 04:33:19,799 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 04:33:19,799 INFO L913 BasicCegarLoop]: 143 mSDtfsCounter, 136 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:19,799 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 406 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 498 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 04:33:19,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-04-05 04:33:19,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 484. [2022-04-05 04:33:19,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5302713987473904) internal successors, (733), 479 states have internal predecessors, (733), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:19,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 737 transitions. [2022-04-05 04:33:19,804 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 737 transitions. Word has length 145 [2022-04-05 04:33:19,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:19,805 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 737 transitions. [2022-04-05 04:33:19,805 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 04:33:19,805 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 737 transitions. [2022-04-05 04:33:19,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-04-05 04:33:19,806 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:19,806 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, 1] [2022-04-05 04:33:19,806 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-04-05 04:33:19,806 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:19,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:19,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1608810012, now seen corresponding path program 1 times [2022-04-05 04:33:19,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:19,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480473012] [2022-04-05 04:33:19,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:19,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:19,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:19,895 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 04:33:19,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:19,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480473012] [2022-04-05 04:33:19,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480473012] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:19,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:19,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:19,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568492468] [2022-04-05 04:33:19,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:19,896 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:19,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:19,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:19,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:19,897 INFO L87 Difference]: Start difference. First operand 484 states and 737 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 04:33:21,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:24,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:25,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:25,180 INFO L93 Difference]: Finished difference Result 496 states and 753 transitions. [2022-04-05 04:33:25,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:25,180 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 145 [2022-04-05 04:33:25,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:25,182 INFO L225 Difference]: With dead ends: 496 [2022-04-05 04:33:25,182 INFO L226 Difference]: Without dead ends: 496 [2022-04-05 04:33:25,182 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 04:33:25,182 INFO L913 BasicCegarLoop]: 250 mSDtfsCounter, 40 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:25,183 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 625 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 436 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-04-05 04:33:25,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2022-04-05 04:33:25,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 484. [2022-04-05 04:33:25,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5281837160751566) internal successors, (732), 479 states have internal predecessors, (732), 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 04:33:25,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 736 transitions. [2022-04-05 04:33:25,188 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 736 transitions. Word has length 145 [2022-04-05 04:33:25,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:25,188 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 736 transitions. [2022-04-05 04:33:25,188 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 04:33:25,188 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 736 transitions. [2022-04-05 04:33:25,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-04-05 04:33:25,189 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:25,189 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, 1] [2022-04-05 04:33:25,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-04-05 04:33:25,189 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:25,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:25,189 INFO L85 PathProgramCache]: Analyzing trace with hash -228541388, now seen corresponding path program 1 times [2022-04-05 04:33:25,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:25,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303132013] [2022-04-05 04:33:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:25,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:25,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:25,276 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 04:33:25,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:25,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303132013] [2022-04-05 04:33:25,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303132013] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:25,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:25,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:25,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562381098] [2022-04-05 04:33:25,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:25,276 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:25,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:25,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:25,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:25,277 INFO L87 Difference]: Start difference. First operand 484 states and 736 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 04:33:27,296 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 04:33:27,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:27,674 INFO L93 Difference]: Finished difference Result 516 states and 782 transitions. [2022-04-05 04:33:27,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:27,675 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 04:33:27,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:27,676 INFO L225 Difference]: With dead ends: 516 [2022-04-05 04:33:27,676 INFO L226 Difference]: Without dead ends: 516 [2022-04-05 04:33:27,676 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 04:33:27,680 INFO L913 BasicCegarLoop]: 205 mSDtfsCounter, 67 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:27,680 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 537 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 487 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-04-05 04:33:27,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2022-04-05 04:33:27,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 484. [2022-04-05 04:33:27,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.5260960334029228) internal successors, (731), 479 states have internal predecessors, (731), 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 04:33:27,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 735 transitions. [2022-04-05 04:33:27,685 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 735 transitions. Word has length 146 [2022-04-05 04:33:27,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:27,685 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 735 transitions. [2022-04-05 04:33:27,686 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 04:33:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 735 transitions. [2022-04-05 04:33:27,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-05 04:33:27,686 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:27,686 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, 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 04:33:27,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-04-05 04:33:27,687 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:27,687 INFO L85 PathProgramCache]: Analyzing trace with hash 377443891, now seen corresponding path program 1 times [2022-04-05 04:33:27,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:27,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541679461] [2022-04-05 04:33:27,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:27,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:27,785 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-04-05 04:33:27,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:27,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541679461] [2022-04-05 04:33:27,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541679461] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:27,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:27,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:27,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962898259] [2022-04-05 04:33:27,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:27,785 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:27,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:27,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:27,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:27,786 INFO L87 Difference]: Start difference. First operand 484 states and 735 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:29,038 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 04:33:30,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:31,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:32,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:32,871 INFO L93 Difference]: Finished difference Result 566 states and 846 transitions. [2022-04-05 04:33:32,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:32,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-05 04:33:32,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:32,873 INFO L225 Difference]: With dead ends: 566 [2022-04-05 04:33:32,873 INFO L226 Difference]: Without dead ends: 566 [2022-04-05 04:33:32,874 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 04:33:32,874 INFO L913 BasicCegarLoop]: 138 mSDtfsCounter, 142 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:32,874 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 396 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 04:33:32,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-04-05 04:33:32,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 484. [2022-04-05 04:33:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 479 states have (on average 1.511482254697286) internal successors, (724), 479 states have internal predecessors, (724), 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 04:33:32,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 728 transitions. [2022-04-05 04:33:32,879 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 728 transitions. Word has length 147 [2022-04-05 04:33:32,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:32,880 INFO L478 AbstractCegarLoop]: Abstraction has 484 states and 728 transitions. [2022-04-05 04:33:32,880 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:32,880 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 728 transitions. [2022-04-05 04:33:32,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-05 04:33:32,881 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:32,881 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, 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 04:33:32,881 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-04-05 04:33:32,881 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:32,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:32,881 INFO L85 PathProgramCache]: Analyzing trace with hash 892964340, now seen corresponding path program 1 times [2022-04-05 04:33:32,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:32,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840272426] [2022-04-05 04:33:32,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:32,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:32,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:32,964 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-04-05 04:33:32,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:32,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840272426] [2022-04-05 04:33:32,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840272426] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:32,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:32,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:33:32,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907549039] [2022-04-05 04:33:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:32,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:33:32,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:32,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:33:32,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:33:32,965 INFO L87 Difference]: Start difference. First operand 484 states and 728 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:35,777 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:36,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:36,088 INFO L93 Difference]: Finished difference Result 939 states and 1408 transitions. [2022-04-05 04:33:36,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:33:36,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 147 [2022-04-05 04:33:36,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:36,091 INFO L225 Difference]: With dead ends: 939 [2022-04-05 04:33:36,091 INFO L226 Difference]: Without dead ends: 939 [2022-04-05 04:33:36,091 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 04:33:36,091 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:36,091 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 447 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-04-05 04:33:36,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2022-04-05 04:33:36,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 939. [2022-04-05 04:33:36,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 934 states have (on average 1.5032119914346895) internal successors, (1404), 934 states have internal predecessors, (1404), 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 04:33:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1408 transitions. [2022-04-05 04:33:36,100 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1408 transitions. Word has length 147 [2022-04-05 04:33:36,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:36,100 INFO L478 AbstractCegarLoop]: Abstraction has 939 states and 1408 transitions. [2022-04-05 04:33:36,100 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:36,100 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1408 transitions. [2022-04-05 04:33:36,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-05 04:33:36,101 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:36,101 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, 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 04:33:36,102 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-04-05 04:33:36,102 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:36,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:36,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1908090507, now seen corresponding path program 1 times [2022-04-05 04:33:36,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:36,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923528682] [2022-04-05 04:33:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:36,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-04-05 04:33:36,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:36,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923528682] [2022-04-05 04:33:36,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923528682] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:36,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:36,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:33:36,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82874628] [2022-04-05 04:33:36,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:36,192 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:33:36,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:36,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:33:36,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:33:36,193 INFO L87 Difference]: Start difference. First operand 939 states and 1408 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 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 04:33:37,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:37,778 INFO L93 Difference]: Finished difference Result 966 states and 1443 transitions. [2022-04-05 04:33:37,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:33:37,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 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 147 [2022-04-05 04:33:37,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:37,781 INFO L225 Difference]: With dead ends: 966 [2022-04-05 04:33:37,781 INFO L226 Difference]: Without dead ends: 966 [2022-04-05 04:33:37,781 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 04:33:37,781 INFO L913 BasicCegarLoop]: 235 mSDtfsCounter, 15 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:37,782 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 429 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-04-05 04:33:37,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-04-05 04:33:37,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 966. [2022-04-05 04:33:37,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 961 states have (on average 1.4973985431841832) internal successors, (1439), 961 states have internal predecessors, (1439), 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 04:33:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1443 transitions. [2022-04-05 04:33:37,790 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1443 transitions. Word has length 147 [2022-04-05 04:33:37,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:37,790 INFO L478 AbstractCegarLoop]: Abstraction has 966 states and 1443 transitions. [2022-04-05 04:33:37,791 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 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 04:33:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1443 transitions. [2022-04-05 04:33:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-04-05 04:33:37,792 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:37,792 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, 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 04:33:37,792 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-04-05 04:33:37,792 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:37,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:37,793 INFO L85 PathProgramCache]: Analyzing trace with hash 483416694, now seen corresponding path program 1 times [2022-04-05 04:33:37,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:37,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908827195] [2022-04-05 04:33:37,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:37,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:37,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-04-05 04:33:37,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:37,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908827195] [2022-04-05 04:33:37,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908827195] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:37,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:37,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:33:37,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355201241] [2022-04-05 04:33:37,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:37,863 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:33:37,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:37,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:33:37,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:33:37,864 INFO L87 Difference]: Start difference. First operand 966 states and 1443 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 04:33:40,724 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 04:33:40,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:40,957 INFO L93 Difference]: Finished difference Result 968 states and 1445 transitions. [2022-04-05 04:33:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:33:40,957 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 147 [2022-04-05 04:33:40,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:40,960 INFO L225 Difference]: With dead ends: 968 [2022-04-05 04:33:40,960 INFO L226 Difference]: Without dead ends: 968 [2022-04-05 04:33:40,960 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 04:33:40,960 INFO L913 BasicCegarLoop]: 223 mSDtfsCounter, 4 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:40,960 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 408 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 259 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2022-04-05 04:33:40,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2022-04-05 04:33:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 968. [2022-04-05 04:33:40,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 968 states, 963 states have (on average 1.4963655244029075) internal successors, (1441), 963 states have internal predecessors, (1441), 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 04:33:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 968 states to 968 states and 1445 transitions. [2022-04-05 04:33:40,969 INFO L78 Accepts]: Start accepts. Automaton has 968 states and 1445 transitions. Word has length 147 [2022-04-05 04:33:40,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:40,969 INFO L478 AbstractCegarLoop]: Abstraction has 968 states and 1445 transitions. [2022-04-05 04:33:40,969 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:40,970 INFO L276 IsEmpty]: Start isEmpty. Operand 968 states and 1445 transitions. [2022-04-05 04:33:40,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-04-05 04:33:41,000 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:41,000 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, 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 04:33:41,000 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-04-05 04:33:41,000 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:41,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:41,001 INFO L85 PathProgramCache]: Analyzing trace with hash 950619995, now seen corresponding path program 1 times [2022-04-05 04:33:41,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:41,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884934396] [2022-04-05 04:33:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-04-05 04:33:41,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:41,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884934396] [2022-04-05 04:33:41,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884934396] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:41,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:41,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:33:41,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782221097] [2022-04-05 04:33:41,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:41,101 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:33:41,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:41,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:33:41,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:33:41,101 INFO L87 Difference]: Start difference. First operand 968 states and 1445 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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 04:33:42,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:44,865 WARN L534 Checker$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 04:33:46,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:46,296 INFO L93 Difference]: Finished difference Result 1423 states and 2125 transitions. [2022-04-05 04:33:46,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:33:46,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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 149 [2022-04-05 04:33:46,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:46,300 INFO L225 Difference]: With dead ends: 1423 [2022-04-05 04:33:46,300 INFO L226 Difference]: Without dead ends: 1423 [2022-04-05 04:33:46,300 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 04:33:46,301 INFO L913 BasicCegarLoop]: 395 mSDtfsCounter, 153 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:46,301 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 589 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 04:33:46,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2022-04-05 04:33:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1423. [2022-04-05 04:33:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1418 states have (on average 1.495768688293371) internal successors, (2121), 1418 states have internal predecessors, (2121), 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 04:33:46,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 2125 transitions. [2022-04-05 04:33:46,316 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 2125 transitions. Word has length 149 [2022-04-05 04:33:46,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:46,316 INFO L478 AbstractCegarLoop]: Abstraction has 1423 states and 2125 transitions. [2022-04-05 04:33:46,316 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 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 04:33:46,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 2125 transitions. [2022-04-05 04:33:46,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-04-05 04:33:46,318 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:46,318 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, 1, 1, 1, 1, 1] [2022-04-05 04:33:46,318 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-04-05 04:33:46,318 INFO L403 AbstractCegarLoop]: === Iteration 35 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:46,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash -685662058, now seen corresponding path program 1 times [2022-04-05 04:33:46,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:46,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037280489] [2022-04-05 04:33:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:46,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:46,454 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 04:33:46,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:46,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037280489] [2022-04-05 04:33:46,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037280489] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:46,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:46,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:46,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809136253] [2022-04-05 04:33:46,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:46,455 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:46,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:46,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:46,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:46,455 INFO L87 Difference]: Start difference. First operand 1423 states and 2125 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:47,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:49,814 WARN L534 Checker$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 04:33:51,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:51,860 INFO L93 Difference]: Finished difference Result 1603 states and 2380 transitions. [2022-04-05 04:33:51,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:51,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-04-05 04:33:51,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:51,864 INFO L225 Difference]: With dead ends: 1603 [2022-04-05 04:33:51,864 INFO L226 Difference]: Without dead ends: 1603 [2022-04-05 04:33:51,864 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 04:33:51,865 INFO L913 BasicCegarLoop]: 262 mSDtfsCounter, 47 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:51,865 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 649 Invalid, 536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 525 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-04-05 04:33:51,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2022-04-05 04:33:51,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1507. [2022-04-05 04:33:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.496005326231691) internal successors, (2247), 1502 states have internal predecessors, (2247), 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 04:33:51,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2251 transitions. [2022-04-05 04:33:51,877 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2251 transitions. Word has length 178 [2022-04-05 04:33:51,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:51,877 INFO L478 AbstractCegarLoop]: Abstraction has 1507 states and 2251 transitions. [2022-04-05 04:33:51,877 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:51,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2251 transitions. [2022-04-05 04:33:51,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-04-05 04:33:51,880 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:51,880 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:51,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-04-05 04:33:51,880 INFO L403 AbstractCegarLoop]: === Iteration 36 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:51,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash -407815232, now seen corresponding path program 1 times [2022-04-05 04:33:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:51,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273389732] [2022-04-05 04:33:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:51,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:51,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-04-05 04:33:51,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:51,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273389732] [2022-04-05 04:33:51,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273389732] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:51,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:51,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:51,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863114845] [2022-04-05 04:33:51,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:51,982 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:51,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:51,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:51,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:51,982 INFO L87 Difference]: Start difference. First operand 1507 states and 2251 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states 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 04:33:54,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:33:56,375 WARN L534 Checker$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 04:33:56,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:33:56,853 INFO L93 Difference]: Finished difference Result 1718 states and 2514 transitions. [2022-04-05 04:33:56,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:33:56,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 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 198 [2022-04-05 04:33:56,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:33:56,858 INFO L225 Difference]: With dead ends: 1718 [2022-04-05 04:33:56,858 INFO L226 Difference]: Without dead ends: 1718 [2022-04-05 04:33:56,858 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 04:33:56,859 INFO L913 BasicCegarLoop]: 141 mSDtfsCounter, 149 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:33:56,859 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 402 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-04-05 04:33:56,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-04-05 04:33:56,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1507. [2022-04-05 04:33:56,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4800266311584553) internal successors, (2223), 1502 states have internal predecessors, (2223), 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 04:33:56,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2227 transitions. [2022-04-05 04:33:56,893 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2227 transitions. Word has length 198 [2022-04-05 04:33:56,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:33:56,893 INFO L478 AbstractCegarLoop]: Abstraction has 1507 states and 2227 transitions. [2022-04-05 04:33:56,894 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 1 states have call successors, (3), 2 states 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 04:33:56,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2227 transitions. [2022-04-05 04:33:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-04-05 04:33:56,896 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:33:56,897 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:33:56,897 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-04-05 04:33:56,897 INFO L403 AbstractCegarLoop]: === Iteration 37 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:33:56,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:33:56,897 INFO L85 PathProgramCache]: Analyzing trace with hash -216238576, now seen corresponding path program 1 times [2022-04-05 04:33:56,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:33:56,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105960680] [2022-04-05 04:33:56,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:33:56,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:33:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:57,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:33:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:33:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-04-05 04:33:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:33:57,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105960680] [2022-04-05 04:33:57,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105960680] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:33:57,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:33:57,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:33:57,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435812522] [2022-04-05 04:33:57,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:33:57,034 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:33:57,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:33:57,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:33:57,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:33:57,036 INFO L87 Difference]: Start difference. First operand 1507 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:33:59,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:01,423 WARN L534 Checker$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 04:34:02,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:02,676 INFO L93 Difference]: Finished difference Result 1718 states and 2490 transitions. [2022-04-05 04:34:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:02,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 201 [2022-04-05 04:34:02,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:02,680 INFO L225 Difference]: With dead ends: 1718 [2022-04-05 04:34:02,680 INFO L226 Difference]: Without dead ends: 1718 [2022-04-05 04:34:02,681 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 04:34:02,681 INFO L913 BasicCegarLoop]: 145 mSDtfsCounter, 134 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 55 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:02,681 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 410 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 04:34:02,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-04-05 04:34:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 1507. [2022-04-05 04:34:02,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1502 states have (on average 1.4640479360852197) internal successors, (2199), 1502 states have internal predecessors, (2199), 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 04:34:02,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2203 transitions. [2022-04-05 04:34:02,694 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2203 transitions. Word has length 201 [2022-04-05 04:34:02,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:02,695 INFO L478 AbstractCegarLoop]: Abstraction has 1507 states and 2203 transitions. [2022-04-05 04:34:02,695 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:02,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2203 transitions. [2022-04-05 04:34:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-04-05 04:34:02,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:02,697 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:02,697 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-04-05 04:34:02,697 INFO L403 AbstractCegarLoop]: === Iteration 38 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:02,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:02,697 INFO L85 PathProgramCache]: Analyzing trace with hash -601967675, now seen corresponding path program 1 times [2022-04-05 04:34:02,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:02,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202480327] [2022-04-05 04:34:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:02,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-04-05 04:34:02,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:02,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202480327] [2022-04-05 04:34:02,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202480327] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:02,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:02,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:02,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080603652] [2022-04-05 04:34:02,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:02,856 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:02,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:02,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:02,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:02,857 INFO L87 Difference]: Start difference. First operand 1507 states and 2203 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 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 04:34:03,923 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:05,948 WARN L534 Checker$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 04:34:07,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:07,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:07,785 INFO L93 Difference]: Finished difference Result 1990 states and 2909 transitions. [2022-04-05 04:34:07,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:07,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 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 202 [2022-04-05 04:34:07,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:07,791 INFO L225 Difference]: With dead ends: 1990 [2022-04-05 04:34:07,791 INFO L226 Difference]: Without dead ends: 1990 [2022-04-05 04:34:07,791 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 04:34:07,791 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:07,791 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 463 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-04-05 04:34:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2022-04-05 04:34:07,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2022-04-05 04:34:07,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1985 states have (on average 1.4634760705289673) internal successors, (2905), 1985 states have internal predecessors, (2905), 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 04:34:07,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2909 transitions. [2022-04-05 04:34:07,809 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2909 transitions. Word has length 202 [2022-04-05 04:34:07,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:07,809 INFO L478 AbstractCegarLoop]: Abstraction has 1990 states and 2909 transitions. [2022-04-05 04:34:07,809 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 3 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 04:34:07,809 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2909 transitions. [2022-04-05 04:34:07,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-04-05 04:34:07,812 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:07,812 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:07,812 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-04-05 04:34:07,812 INFO L403 AbstractCegarLoop]: === Iteration 39 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:07,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:07,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1556196570, now seen corresponding path program 1 times [2022-04-05 04:34:07,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:07,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988996916] [2022-04-05 04:34:07,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:07,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:07,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:07,991 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-04-05 04:34:07,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:07,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988996916] [2022-04-05 04:34:07,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988996916] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:07,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:07,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:07,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047336578] [2022-04-05 04:34:07,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:07,992 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:07,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:07,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:07,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:07,993 INFO L87 Difference]: Start difference. First operand 1990 states and 2909 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 04:34:11,323 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 04:34:11,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:11,635 INFO L93 Difference]: Finished difference Result 2474 states and 3622 transitions. [2022-04-05 04:34:11,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:11,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 202 [2022-04-05 04:34:11,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:11,664 INFO L225 Difference]: With dead ends: 2474 [2022-04-05 04:34:11,664 INFO L226 Difference]: Without dead ends: 2474 [2022-04-05 04:34:11,664 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 04:34:11,664 INFO L913 BasicCegarLoop]: 202 mSDtfsCounter, 159 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:11,665 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 387 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-04-05 04:34:11,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2022-04-05 04:34:11,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2474. [2022-04-05 04:34:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2474 states, 2469 states have (on average 1.465370595382746) internal successors, (3618), 2469 states have internal predecessors, (3618), 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 04:34:11,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2474 states to 2474 states and 3622 transitions. [2022-04-05 04:34:11,705 INFO L78 Accepts]: Start accepts. Automaton has 2474 states and 3622 transitions. Word has length 202 [2022-04-05 04:34:11,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:11,706 INFO L478 AbstractCegarLoop]: Abstraction has 2474 states and 3622 transitions. [2022-04-05 04:34:11,706 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 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 04:34:11,706 INFO L276 IsEmpty]: Start isEmpty. Operand 2474 states and 3622 transitions. [2022-04-05 04:34:11,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-04-05 04:34:11,709 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:11,709 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:11,709 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-04-05 04:34:11,709 INFO L403 AbstractCegarLoop]: === Iteration 40 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:11,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash 745953542, now seen corresponding path program 1 times [2022-04-05 04:34:11,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:11,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611196367] [2022-04-05 04:34:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:11,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:11,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:11,883 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-04-05 04:34:11,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:11,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611196367] [2022-04-05 04:34:11,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611196367] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:11,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:11,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:11,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118766574] [2022-04-05 04:34:11,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:11,883 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:11,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:11,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:11,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:11,884 INFO L87 Difference]: Start difference. First operand 2474 states and 3622 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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 04:34:14,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:14,019 INFO L93 Difference]: Finished difference Result 2958 states and 4336 transitions. [2022-04-05 04:34:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:14,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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 241 [2022-04-05 04:34:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:14,032 INFO L225 Difference]: With dead ends: 2958 [2022-04-05 04:34:14,033 INFO L226 Difference]: Without dead ends: 2958 [2022-04-05 04:34:14,033 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 04:34:14,033 INFO L913 BasicCegarLoop]: 201 mSDtfsCounter, 164 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:14,033 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 386 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-04-05 04:34:14,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2022-04-05 04:34:14,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2958. [2022-04-05 04:34:14,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2953 states have (on average 1.4669827294277007) internal successors, (4332), 2953 states have internal predecessors, (4332), 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 04:34:14,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 4336 transitions. [2022-04-05 04:34:14,079 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 4336 transitions. Word has length 241 [2022-04-05 04:34:14,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:14,079 INFO L478 AbstractCegarLoop]: Abstraction has 2958 states and 4336 transitions. [2022-04-05 04:34:14,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 3 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 04:34:14,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 4336 transitions. [2022-04-05 04:34:14,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-04-05 04:34:14,083 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:14,083 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:14,083 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-04-05 04:34:14,083 INFO L403 AbstractCegarLoop]: === Iteration 41 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:14,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:14,084 INFO L85 PathProgramCache]: Analyzing trace with hash -789418403, now seen corresponding path program 1 times [2022-04-05 04:34:14,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:14,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165677623] [2022-04-05 04:34:14,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:14,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2022-04-05 04:34:14,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:14,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165677623] [2022-04-05 04:34:14,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165677623] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:14,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:14,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:14,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84945033] [2022-04-05 04:34:14,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:14,206 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:14,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:14,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:14,206 INFO L87 Difference]: Start difference. First operand 2958 states and 4336 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 04:34:15,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:17,782 WARN L534 Checker$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 04:34:19,603 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 04:34:19,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:19,878 INFO L93 Difference]: Finished difference Result 3442 states and 5051 transitions. [2022-04-05 04:34:19,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:19,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 243 [2022-04-05 04:34:19,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:19,883 INFO L225 Difference]: With dead ends: 3442 [2022-04-05 04:34:19,883 INFO L226 Difference]: Without dead ends: 3442 [2022-04-05 04:34:19,883 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 04:34:19,884 INFO L913 BasicCegarLoop]: 200 mSDtfsCounter, 165 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:19,884 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 385 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-04-05 04:34:19,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2022-04-05 04:34:19,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3442. [2022-04-05 04:34:19,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 3437 states have (on average 1.4684317718940938) internal successors, (5047), 3437 states have internal predecessors, (5047), 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 04:34:19,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 5051 transitions. [2022-04-05 04:34:19,914 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 5051 transitions. Word has length 243 [2022-04-05 04:34:19,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:19,914 INFO L478 AbstractCegarLoop]: Abstraction has 3442 states and 5051 transitions. [2022-04-05 04:34:19,914 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 04:34:19,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 5051 transitions. [2022-04-05 04:34:19,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-04-05 04:34:19,918 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:19,919 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:19,919 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-04-05 04:34:19,919 INFO L403 AbstractCegarLoop]: === Iteration 42 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:19,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:19,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1100311010, now seen corresponding path program 1 times [2022-04-05 04:34:19,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:19,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336572896] [2022-04-05 04:34:19,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:19,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:20,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2022-04-05 04:34:20,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:20,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336572896] [2022-04-05 04:34:20,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336572896] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:20,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:20,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:20,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118867482] [2022-04-05 04:34:20,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:20,067 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:20,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:20,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:20,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:20,067 INFO L87 Difference]: Start difference. First operand 3442 states and 5051 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:21,896 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 04:34:23,913 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 04:34:24,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:24,376 INFO L93 Difference]: Finished difference Result 3920 states and 5751 transitions. [2022-04-05 04:34:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:24,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2022-04-05 04:34:24,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:24,382 INFO L225 Difference]: With dead ends: 3920 [2022-04-05 04:34:24,382 INFO L226 Difference]: Without dead ends: 3920 [2022-04-05 04:34:24,382 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 04:34:24,382 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 148 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:24,382 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 588 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 456 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-04-05 04:34:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-04-05 04:34:24,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3920. [2022-04-05 04:34:24,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3915 states have (on average 1.4679438058748404) internal successors, (5747), 3915 states have internal predecessors, (5747), 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 04:34:24,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5751 transitions. [2022-04-05 04:34:24,421 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5751 transitions. Word has length 275 [2022-04-05 04:34:24,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:24,421 INFO L478 AbstractCegarLoop]: Abstraction has 3920 states and 5751 transitions. [2022-04-05 04:34:24,421 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 3 states have internal predecessors, (129), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:34:24,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5751 transitions. [2022-04-05 04:34:24,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-04-05 04:34:24,446 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:24,446 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:24,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-04-05 04:34:24,446 INFO L403 AbstractCegarLoop]: === Iteration 43 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:24,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:24,449 INFO L85 PathProgramCache]: Analyzing trace with hash -835349277, now seen corresponding path program 1 times [2022-04-05 04:34:24,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:24,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124741970] [2022-04-05 04:34:24,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:24,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:24,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:24,590 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-04-05 04:34:24,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:24,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124741970] [2022-04-05 04:34:24,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124741970] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:24,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:24,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:24,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773527450] [2022-04-05 04:34:24,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:24,592 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:24,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:24,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:24,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:24,593 INFO L87 Difference]: Start difference. First operand 3920 states and 5751 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states 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 04:34:26,004 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:27,087 INFO L93 Difference]: Finished difference Result 4371 states and 6410 transitions. [2022-04-05 04:34:27,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:27,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 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 275 [2022-04-05 04:34:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:27,098 INFO L225 Difference]: With dead ends: 4371 [2022-04-05 04:34:27,099 INFO L226 Difference]: Without dead ends: 4371 [2022-04-05 04:34:27,099 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 04:34:27,099 INFO L913 BasicCegarLoop]: 397 mSDtfsCounter, 155 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:27,099 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 591 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:34:27,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2022-04-05 04:34:27,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 4371. [2022-04-05 04:34:27,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 4366 states have (on average 1.467246907924874) internal successors, (6406), 4366 states have internal predecessors, (6406), 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 04:34:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 6410 transitions. [2022-04-05 04:34:27,179 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 6410 transitions. Word has length 275 [2022-04-05 04:34:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:27,181 INFO L478 AbstractCegarLoop]: Abstraction has 4371 states and 6410 transitions. [2022-04-05 04:34:27,181 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (3), 2 states 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 04:34:27,181 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 6410 transitions. [2022-04-05 04:34:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-04-05 04:34:27,189 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:27,189 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:27,189 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-04-05 04:34:27,189 INFO L403 AbstractCegarLoop]: === Iteration 44 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:27,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:27,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1963979722, now seen corresponding path program 1 times [2022-04-05 04:34:27,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:27,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928941790] [2022-04-05 04:34:27,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:27,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:27,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2022-04-05 04:34:27,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:27,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928941790] [2022-04-05 04:34:27,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928941790] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:27,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:27,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:27,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358494485] [2022-04-05 04:34:27,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:27,416 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:27,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:27,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:27,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:27,416 INFO L87 Difference]: Start difference. First operand 4371 states and 6410 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states 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 04:34:29,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:31,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:31,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:31,332 INFO L93 Difference]: Finished difference Result 4855 states and 7128 transitions. [2022-04-05 04:34:31,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:31,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 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 350 [2022-04-05 04:34:31,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:31,339 INFO L225 Difference]: With dead ends: 4855 [2022-04-05 04:34:31,339 INFO L226 Difference]: Without dead ends: 4855 [2022-04-05 04:34:31,339 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 04:34:31,340 INFO L913 BasicCegarLoop]: 197 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:31,340 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 382 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-04-05 04:34:31,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2022-04-05 04:34:31,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 4855. [2022-04-05 04:34:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4855 states, 4850 states have (on average 1.4688659793814434) internal successors, (7124), 4850 states have internal predecessors, (7124), 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 04:34:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4855 states to 4855 states and 7128 transitions. [2022-04-05 04:34:31,394 INFO L78 Accepts]: Start accepts. Automaton has 4855 states and 7128 transitions. Word has length 350 [2022-04-05 04:34:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:31,395 INFO L478 AbstractCegarLoop]: Abstraction has 4855 states and 7128 transitions. [2022-04-05 04:34:31,395 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (3), 2 states 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 04:34:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4855 states and 7128 transitions. [2022-04-05 04:34:31,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2022-04-05 04:34:31,401 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:31,401 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:31,401 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-04-05 04:34:31,401 INFO L403 AbstractCegarLoop]: === Iteration 45 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:31,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:31,402 INFO L85 PathProgramCache]: Analyzing trace with hash 153388337, now seen corresponding path program 1 times [2022-04-05 04:34:31,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:31,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198255704] [2022-04-05 04:34:31,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:31,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:31,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:31,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2022-04-05 04:34:31,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:31,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198255704] [2022-04-05 04:34:31,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198255704] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:31,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:31,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:31,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641514752] [2022-04-05 04:34:31,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:31,589 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:31,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:31,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:31,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:31,590 INFO L87 Difference]: Start difference. First operand 4855 states and 7128 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states 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 04:34:33,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:35,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:35,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:35,673 INFO L93 Difference]: Finished difference Result 5339 states and 7847 transitions. [2022-04-05 04:34:35,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:35,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 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 391 [2022-04-05 04:34:35,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:35,685 INFO L225 Difference]: With dead ends: 5339 [2022-04-05 04:34:35,685 INFO L226 Difference]: Without dead ends: 5339 [2022-04-05 04:34:35,685 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 04:34:35,685 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:35,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-04-05 04:34:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2022-04-05 04:34:35,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2022-04-05 04:34:35,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5334 states have (on average 1.4703787026621673) internal successors, (7843), 5334 states have internal predecessors, (7843), 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 04:34:35,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 7847 transitions. [2022-04-05 04:34:35,734 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 7847 transitions. Word has length 391 [2022-04-05 04:34:35,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:35,734 INFO L478 AbstractCegarLoop]: Abstraction has 5339 states and 7847 transitions. [2022-04-05 04:34:35,734 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 3 states have internal predecessors, (149), 1 states have call successors, (3), 2 states 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 04:34:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 7847 transitions. [2022-04-05 04:34:35,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-04-05 04:34:35,740 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:35,741 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-05 04:34:35,741 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-04-05 04:34:35,741 INFO L403 AbstractCegarLoop]: === Iteration 46 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:35,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:35,741 INFO L85 PathProgramCache]: Analyzing trace with hash 215344654, now seen corresponding path program 1 times [2022-04-05 04:34:35,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:35,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804381867] [2022-04-05 04:34:35,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:35,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:35,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:35,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 285 proven. 0 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2022-04-05 04:34:35,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:35,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804381867] [2022-04-05 04:34:35,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804381867] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:35,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:35,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:35,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888374213] [2022-04-05 04:34:35,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:35,935 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:35,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:35,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:35,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:35,936 INFO L87 Difference]: Start difference. First operand 5339 states and 7847 transitions. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 04:34:37,243 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 04:34:38,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:38,435 INFO L93 Difference]: Finished difference Result 5818 states and 8548 transitions. [2022-04-05 04:34:38,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:38,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 398 [2022-04-05 04:34:38,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:38,443 INFO L225 Difference]: With dead ends: 5818 [2022-04-05 04:34:38,443 INFO L226 Difference]: Without dead ends: 5818 [2022-04-05 04:34:38,443 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 04:34:38,444 INFO L913 BasicCegarLoop]: 394 mSDtfsCounter, 146 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:38,444 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 588 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-05 04:34:38,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5818 states. [2022-04-05 04:34:38,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5818 to 5818. [2022-04-05 04:34:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 5813 states have (on average 1.469809048683984) internal successors, (8544), 5813 states have internal predecessors, (8544), 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 04:34:38,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 8548 transitions. [2022-04-05 04:34:38,532 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 8548 transitions. Word has length 398 [2022-04-05 04:34:38,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:38,532 INFO L478 AbstractCegarLoop]: Abstraction has 5818 states and 8548 transitions. [2022-04-05 04:34:38,532 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 3 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 04:34:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 8548 transitions. [2022-04-05 04:34:38,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-04-05 04:34:38,542 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:38,542 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:38,543 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-04-05 04:34:38,543 INFO L403 AbstractCegarLoop]: === Iteration 47 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:38,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:38,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1038136657, now seen corresponding path program 1 times [2022-04-05 04:34:38,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:38,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220493377] [2022-04-05 04:34:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:38,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:38,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2119 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 1478 trivial. 0 not checked. [2022-04-05 04:34:38,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:38,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220493377] [2022-04-05 04:34:38,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220493377] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:38,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:38,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:34:38,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905222774] [2022-04-05 04:34:38,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:38,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:34:38,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:38,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:34:38,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:34:38,801 INFO L87 Difference]: Start difference. First operand 5818 states and 8548 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 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 04:34:40,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:42,632 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:44,659 WARN L534 Checker$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 04:34:44,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:44,927 INFO L93 Difference]: Finished difference Result 6302 states and 9269 transitions. [2022-04-05 04:34:44,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:34:44,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 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 474 [2022-04-05 04:34:44,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:44,935 INFO L225 Difference]: With dead ends: 6302 [2022-04-05 04:34:44,936 INFO L226 Difference]: Without dead ends: 6302 [2022-04-05 04:34:44,936 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 04:34:44,936 INFO L913 BasicCegarLoop]: 194 mSDtfsCounter, 156 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 28 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:44,937 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 379 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 274 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-04-05 04:34:44,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6302 states. [2022-04-05 04:34:44,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6302 to 6302. [2022-04-05 04:34:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6302 states, 6297 states have (on average 1.4713355566142607) internal successors, (9265), 6297 states have internal predecessors, (9265), 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 04:34:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6302 states to 6302 states and 9269 transitions. [2022-04-05 04:34:44,994 INFO L78 Accepts]: Start accepts. Automaton has 6302 states and 9269 transitions. Word has length 474 [2022-04-05 04:34:44,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:44,995 INFO L478 AbstractCegarLoop]: Abstraction has 6302 states and 9269 transitions. [2022-04-05 04:34:44,995 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 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 04:34:44,995 INFO L276 IsEmpty]: Start isEmpty. Operand 6302 states and 9269 transitions. [2022-04-05 04:34:45,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2022-04-05 04:34:45,004 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:45,005 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:45,005 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-04-05 04:34:45,005 INFO L403 AbstractCegarLoop]: === Iteration 48 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:45,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:45,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1782869354, now seen corresponding path program 1 times [2022-04-05 04:34:45,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:45,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014968656] [2022-04-05 04:34:45,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:45,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:45,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 744 proven. 7 refuted. 0 times theorem prover too weak. 1761 trivial. 0 not checked. [2022-04-05 04:34:45,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:45,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014968656] [2022-04-05 04:34:45,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014968656] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:34:45,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905121577] [2022-04-05 04:34:45,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:45,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:34:45,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:34:45,300 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 04:34:45,301 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 04:34:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:46,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2419 conjuncts, 2 conjunts are in the unsatisfiable core [2022-04-05 04:34:46,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:34:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2512 backedges. 707 proven. 0 refuted. 0 times theorem prover too weak. 1805 trivial. 0 not checked. [2022-04-05 04:34:47,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 04:34:47,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905121577] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:47,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 04:34:47,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-04-05 04:34:47,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544596891] [2022-04-05 04:34:47,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:47,130 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-05 04:34:47,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:47,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-05 04:34:47,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:34:47,131 INFO L87 Difference]: Start difference. First operand 6302 states and 9269 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 04:34:47,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:47,186 INFO L93 Difference]: Finished difference Result 6786 states and 9991 transitions. [2022-04-05 04:34:47,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-05 04:34:47,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 516 [2022-04-05 04:34:47,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:47,194 INFO L225 Difference]: With dead ends: 6786 [2022-04-05 04:34:47,194 INFO L226 Difference]: Without dead ends: 6786 [2022-04-05 04:34:47,194 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:34:47,195 INFO L913 BasicCegarLoop]: 196 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:47,195 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 381 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-05 04:34:47,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6786 states. [2022-04-05 04:34:47,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6786 to 6786. [2022-04-05 04:34:47,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6786 states, 6781 states have (on average 1.4727916236543284) internal successors, (9987), 6781 states have internal predecessors, (9987), 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 04:34:47,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6786 states to 6786 states and 9991 transitions. [2022-04-05 04:34:47,262 INFO L78 Accepts]: Start accepts. Automaton has 6786 states and 9991 transitions. Word has length 516 [2022-04-05 04:34:47,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:47,263 INFO L478 AbstractCegarLoop]: Abstraction has 6786 states and 9991 transitions. [2022-04-05 04:34:47,263 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 04:34:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 6786 states and 9991 transitions. [2022-04-05 04:34:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-04-05 04:34:47,275 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:47,275 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:47,298 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 04:34:47,483 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-04-05 04:34:47,484 INFO L403 AbstractCegarLoop]: === Iteration 49 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:47,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:47,484 INFO L85 PathProgramCache]: Analyzing trace with hash -605380239, now seen corresponding path program 1 times [2022-04-05 04:34:47,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:47,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12350245] [2022-04-05 04:34:47,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:47,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:47,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1473 proven. 0 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2022-04-05 04:34:47,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:47,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12350245] [2022-04-05 04:34:47,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12350245] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:34:47,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:34:47,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:34:47,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017742114] [2022-04-05 04:34:47,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:34:47,734 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:34:47,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:34:47,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:34:47,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:34:47,735 INFO L87 Difference]: Start difference. First operand 6786 states and 9991 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states 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 04:34:50,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:34:52,361 WARN L534 Checker$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 04:34:52,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:34:52,848 INFO L93 Difference]: Finished difference Result 7906 states and 11579 transitions. [2022-04-05 04:34:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:34:52,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 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 524 [2022-04-05 04:34:52,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:34:52,857 INFO L225 Difference]: With dead ends: 7906 [2022-04-05 04:34:52,857 INFO L226 Difference]: Without dead ends: 7906 [2022-04-05 04:34:52,857 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 04:34:52,857 INFO L913 BasicCegarLoop]: 279 mSDtfsCounter, 65 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:34:52,857 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 683 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-04-05 04:34:52,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7906 states. [2022-04-05 04:34:52,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7906 to 7360. [2022-04-05 04:34:52,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7360 states, 7355 states have (on average 1.4739632902787219) internal successors, (10841), 7355 states have internal predecessors, (10841), 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 04:34:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7360 states to 7360 states and 10845 transitions. [2022-04-05 04:34:52,948 INFO L78 Accepts]: Start accepts. Automaton has 7360 states and 10845 transitions. Word has length 524 [2022-04-05 04:34:52,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:34:52,948 INFO L478 AbstractCegarLoop]: Abstraction has 7360 states and 10845 transitions. [2022-04-05 04:34:52,948 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states 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 04:34:52,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7360 states and 10845 transitions. [2022-04-05 04:34:52,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-04-05 04:34:52,959 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:34:52,959 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:34:52,959 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-04-05 04:34:52,960 INFO L403 AbstractCegarLoop]: === Iteration 50 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:34:52,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:34:52,961 INFO L85 PathProgramCache]: Analyzing trace with hash -480652685, now seen corresponding path program 1 times [2022-04-05 04:34:52,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:34:52,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553575552] [2022-04-05 04:34:52,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:52,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:34:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:34:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:53,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1695 proven. 480 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2022-04-05 04:34:53,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:34:53,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553575552] [2022-04-05 04:34:53,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553575552] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:34:53,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786083746] [2022-04-05 04:34:53,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:34:53,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:34:53,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:34:53,885 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 04:34:53,892 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 04:34:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:34:54,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 2457 conjuncts, 42 conjunts are in the unsatisfiable core [2022-04-05 04:34:54,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:34:54,993 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:34:54,993 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 04:34:55,096 INFO L356 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-04-05 04:34:55,096 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 04:34:55,432 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 04:34:55,508 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:34:55,508 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 04:34:55,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:34:55,605 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 23 treesize of output 22 [2022-04-05 04:34:55,650 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 04:34:55,660 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 04:34:55,699 INFO L356 Elim1Store]: treesize reduction 108, result has 34.9 percent of original size [2022-04-05 04:34:55,700 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 6 case distinctions, treesize of input 42 treesize of output 77 [2022-04-05 04:34:55,812 INFO L356 Elim1Store]: treesize reduction 88, result has 17.8 percent of original size [2022-04-05 04:34:55,812 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 65 treesize of output 49 [2022-04-05 04:34:56,068 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:34:56,068 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 04:34:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1454 proven. 212 refuted. 0 times theorem prover too weak. 862 trivial. 0 not checked. [2022-04-05 04:34:56,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:34:56,627 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 77 treesize of output 53 [2022-04-05 04:34:56,633 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 53 treesize of output 41 [2022-04-05 04:35:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 1264 proven. 0 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2022-04-05 04:35:00,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786083746] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:35:00,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:35:00,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14, 14] total 28 [2022-04-05 04:35:00,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294065239] [2022-04-05 04:35:00,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:00,862 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:35:00,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:00,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:35:00,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=662, Unknown=1, NotChecked=0, Total=756 [2022-04-05 04:35:00,863 INFO L87 Difference]: Start difference. First operand 7360 states and 10845 transitions. Second operand has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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 04:35:02,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:03,906 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:11,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:11,014 INFO L93 Difference]: Finished difference Result 14597 states and 21552 transitions. [2022-04-05 04:35:11,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:35:11,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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 524 [2022-04-05 04:35:11,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:11,036 INFO L225 Difference]: With dead ends: 14597 [2022-04-05 04:35:11,036 INFO L226 Difference]: Without dead ends: 14597 [2022-04-05 04:35:11,036 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1071 GetRequests, 1041 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=122, Invalid=867, Unknown=3, NotChecked=0, Total=992 [2022-04-05 04:35:11,036 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 294 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 175 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:11,037 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 1072 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 615 Invalid, 0 Unknown, 175 Unchecked, 3.7s Time] [2022-04-05 04:35:11,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14597 states. [2022-04-05 04:35:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14597 to 12608. [2022-04-05 04:35:11,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12608 states, 12603 states have (on average 1.4899627072919146) internal successors, (18778), 12603 states have internal predecessors, (18778), 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 04:35:11,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12608 states to 12608 states and 18782 transitions. [2022-04-05 04:35:11,169 INFO L78 Accepts]: Start accepts. Automaton has 12608 states and 18782 transitions. Word has length 524 [2022-04-05 04:35:11,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:11,170 INFO L478 AbstractCegarLoop]: Abstraction has 12608 states and 18782 transitions. [2022-04-05 04:35:11,170 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.142857142857142) internal successors, (211), 7 states have internal predecessors, (211), 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 04:35:11,170 INFO L276 IsEmpty]: Start isEmpty. Operand 12608 states and 18782 transitions. [2022-04-05 04:35:11,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-04-05 04:35:11,182 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:11,182 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:11,206 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 04:35:11,382 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,SelfDestructingSolverStorable49 [2022-04-05 04:35:11,383 INFO L403 AbstractCegarLoop]: === Iteration 51 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:11,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:11,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1163721738, now seen corresponding path program 1 times [2022-04-05 04:35:11,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:11,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249506] [2022-04-05 04:35:11,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:11,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:11,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2530 backedges. 1049 proven. 0 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2022-04-05 04:35:11,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:11,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249506] [2022-04-05 04:35:11,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249506] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:11,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:11,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:11,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215538020] [2022-04-05 04:35:11,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:11,670 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:11,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:11,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:11,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:11,670 INFO L87 Difference]: Start difference. First operand 12608 states and 18782 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states 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 04:35:14,074 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:15,828 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:17,855 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 04:35:18,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:18,365 INFO L93 Difference]: Finished difference Result 13543 states and 20037 transitions. [2022-04-05 04:35:18,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:18,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 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 525 [2022-04-05 04:35:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:18,397 INFO L225 Difference]: With dead ends: 13543 [2022-04-05 04:35:18,397 INFO L226 Difference]: Without dead ends: 13543 [2022-04-05 04:35:18,397 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 04:35:18,398 INFO L913 BasicCegarLoop]: 278 mSDtfsCounter, 63 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:18,398 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 681 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 583 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 04:35:18,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-04-05 04:35:18,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 12622. [2022-04-05 04:35:18,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4894190378061345) internal successors, (18792), 12617 states have internal predecessors, (18792), 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 04:35:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18796 transitions. [2022-04-05 04:35:18,516 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18796 transitions. Word has length 525 [2022-04-05 04:35:18,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:18,516 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18796 transitions. [2022-04-05 04:35:18,516 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 4 states have internal predecessors, (211), 1 states have call successors, (3), 2 states 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 04:35:18,516 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18796 transitions. [2022-04-05 04:35:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-04-05 04:35:18,567 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:18,567 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:18,567 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-04-05 04:35:18,568 INFO L403 AbstractCegarLoop]: === Iteration 52 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:18,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1740174604, now seen corresponding path program 1 times [2022-04-05 04:35:18,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:18,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830186023] [2022-04-05 04:35:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:18,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:18,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:18,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2782 backedges. 1231 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-04-05 04:35:18,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:18,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830186023] [2022-04-05 04:35:18,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830186023] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:18,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:18,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:18,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204423333] [2022-04-05 04:35:18,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:18,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:18,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:18,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:18,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:18,953 INFO L87 Difference]: Start difference. First operand 12622 states and 18796 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states 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 04:35:20,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:22,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:24,240 WARN L534 Checker$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 04:35:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:25,739 INFO L93 Difference]: Finished difference Result 13543 states and 20010 transitions. [2022-04-05 04:35:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:25,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 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 546 [2022-04-05 04:35:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:25,753 INFO L225 Difference]: With dead ends: 13543 [2022-04-05 04:35:25,754 INFO L226 Difference]: Without dead ends: 13543 [2022-04-05 04:35:25,754 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 04:35:25,758 INFO L913 BasicCegarLoop]: 277 mSDtfsCounter, 82 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:25,759 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 679 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 581 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 04:35:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13543 states. [2022-04-05 04:35:25,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13543 to 12622. [2022-04-05 04:35:25,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4872790679242291) internal successors, (18765), 12617 states have internal predecessors, (18765), 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 04:35:25,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18769 transitions. [2022-04-05 04:35:25,930 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18769 transitions. Word has length 546 [2022-04-05 04:35:25,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:25,930 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18769 transitions. [2022-04-05 04:35:25,930 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 4 states have internal predecessors, (197), 1 states have call successors, (3), 2 states 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 04:35:25,930 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18769 transitions. [2022-04-05 04:35:25,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-04-05 04:35:25,947 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:25,947 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 13, 12, 12, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:25,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-04-05 04:35:25,947 INFO L403 AbstractCegarLoop]: === Iteration 53 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:25,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:25,948 INFO L85 PathProgramCache]: Analyzing trace with hash -730527589, now seen corresponding path program 1 times [2022-04-05 04:35:25,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:25,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839509406] [2022-04-05 04:35:25,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:25,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:26,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:26,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2795 backedges. 1244 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2022-04-05 04:35:26,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:26,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839509406] [2022-04-05 04:35:26,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839509406] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:26,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:26,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:26,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412567445] [2022-04-05 04:35:26,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:26,179 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:26,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:26,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:26,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:26,179 INFO L87 Difference]: Start difference. First operand 12622 states and 18769 transitions. Second operand has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states 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 04:35:28,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:29,704 WARN L534 Checker$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 04:35:31,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:33,754 WARN L534 Checker$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 04:35:34,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:34,355 INFO L93 Difference]: Finished difference Result 13435 states and 19832 transitions. [2022-04-05 04:35:34,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:34,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 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 547 [2022-04-05 04:35:34,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:34,374 INFO L225 Difference]: With dead ends: 13435 [2022-04-05 04:35:34,374 INFO L226 Difference]: Without dead ends: 13435 [2022-04-05 04:35:34,374 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 04:35:34,375 INFO L913 BasicCegarLoop]: 273 mSDtfsCounter, 76 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:34,375 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 671 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 566 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-04-05 04:35:34,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13435 states. [2022-04-05 04:35:34,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13435 to 12622. [2022-04-05 04:35:34,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.4851390980423238) internal successors, (18738), 12617 states have internal predecessors, (18738), 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 04:35:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18742 transitions. [2022-04-05 04:35:34,521 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18742 transitions. Word has length 547 [2022-04-05 04:35:34,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:34,521 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18742 transitions. [2022-04-05 04:35:34,522 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.6) internal successors, (198), 4 states have internal predecessors, (198), 1 states have call successors, (3), 2 states 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 04:35:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18742 transitions. [2022-04-05 04:35:34,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-04-05 04:35:34,533 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:34,533 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:34,533 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-04-05 04:35:34,534 INFO L403 AbstractCegarLoop]: === Iteration 54 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash -811732947, now seen corresponding path program 1 times [2022-04-05 04:35:34,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:34,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569910562] [2022-04-05 04:35:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:34,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:34,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:34,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1131 proven. 34 refuted. 0 times theorem prover too weak. 1686 trivial. 0 not checked. [2022-04-05 04:35:34,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:34,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569910562] [2022-04-05 04:35:34,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569910562] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:35:34,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083575497] [2022-04-05 04:35:34,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:34,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:35:34,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:35:34,884 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 04:35:34,927 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 04:35:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:36,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-05 04:35:36,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:35:36,506 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 04:35:36,525 INFO L356 Elim1Store]: treesize reduction 30, result has 38.8 percent of original size [2022-04-05 04:35:36,525 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 04:35:36,532 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 04:35:36,537 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 04:35:36,682 INFO L356 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-04-05 04:35:36,683 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 04:35:36,688 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 04:35:36,707 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 04:35:36,775 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 04:35:36,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1115 proven. 0 refuted. 0 times theorem prover too weak. 1736 trivial. 0 not checked. [2022-04-05 04:35:36,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-05 04:35:36,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083575497] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:36,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-05 04:35:36,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-04-05 04:35:36,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41352879] [2022-04-05 04:35:36,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:36,867 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:35:36,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:36,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:35:36,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:35:36,868 INFO L87 Difference]: Start difference. First operand 12622 states and 18742 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 04:35:38,418 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 04:35:38,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:38,669 INFO L93 Difference]: Finished difference Result 13322 states and 19714 transitions. [2022-04-05 04:35:38,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:35:38,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 549 [2022-04-05 04:35:38,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:38,685 INFO L225 Difference]: With dead ends: 13322 [2022-04-05 04:35:38,685 INFO L226 Difference]: Without dead ends: 13322 [2022-04-05 04:35:38,685 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:35:38,686 INFO L913 BasicCegarLoop]: 283 mSDtfsCounter, 66 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:38,686 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 689 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-05 04:35:38,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13322 states. [2022-04-05 04:35:38,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13322 to 12776. [2022-04-05 04:35:38,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12776 states, 12771 states have (on average 1.4858664160989743) internal successors, (18976), 12771 states have internal predecessors, (18976), 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 04:35:38,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12776 states to 12776 states and 18980 transitions. [2022-04-05 04:35:38,818 INFO L78 Accepts]: Start accepts. Automaton has 12776 states and 18980 transitions. Word has length 549 [2022-04-05 04:35:38,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:38,819 INFO L478 AbstractCegarLoop]: Abstraction has 12776 states and 18980 transitions. [2022-04-05 04:35:38,819 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 04:35:38,819 INFO L276 IsEmpty]: Start isEmpty. Operand 12776 states and 18980 transitions. [2022-04-05 04:35:38,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-04-05 04:35:38,831 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:38,831 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:38,856 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 04:35:39,055 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:35:39,056 INFO L403 AbstractCegarLoop]: === Iteration 55 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:39,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash -802217617, now seen corresponding path program 1 times [2022-04-05 04:35:39,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:39,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260869237] [2022-04-05 04:35:39,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:39,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:39,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2853 backedges. 1096 proven. 0 refuted. 0 times theorem prover too weak. 1757 trivial. 0 not checked. [2022-04-05 04:35:39,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:39,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260869237] [2022-04-05 04:35:39,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260869237] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:39,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:39,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:39,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877689616] [2022-04-05 04:35:39,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:39,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:39,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:39,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:39,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:39,331 INFO L87 Difference]: Start difference. First operand 12776 states and 18980 transitions. Second operand has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states 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 04:35:41,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:42,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:44,545 WARN L534 Checker$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 04:35:44,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:44,974 INFO L93 Difference]: Finished difference Result 12889 states and 19109 transitions. [2022-04-05 04:35:44,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:35:44,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 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 550 [2022-04-05 04:35:44,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:44,988 INFO L225 Difference]: With dead ends: 12889 [2022-04-05 04:35:44,988 INFO L226 Difference]: Without dead ends: 12889 [2022-04-05 04:35:44,988 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 04:35:44,992 INFO L913 BasicCegarLoop]: 252 mSDtfsCounter, 36 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:44,993 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 630 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-04-05 04:35:44,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12889 states. [2022-04-05 04:35:45,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12889 to 12622. [2022-04-05 04:35:45,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12622 states, 12617 states have (on average 1.484029484029484) internal successors, (18724), 12617 states have internal predecessors, (18724), 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 04:35:45,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12622 states to 12622 states and 18728 transitions. [2022-04-05 04:35:45,132 INFO L78 Accepts]: Start accepts. Automaton has 12622 states and 18728 transitions. Word has length 550 [2022-04-05 04:35:45,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:45,132 INFO L478 AbstractCegarLoop]: Abstraction has 12622 states and 18728 transitions. [2022-04-05 04:35:45,132 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.0) internal successors, (200), 4 states have internal predecessors, (200), 1 states have call successors, (3), 2 states 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 04:35:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 12622 states and 18728 transitions. [2022-04-05 04:35:45,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-04-05 04:35:45,144 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:45,144 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:45,144 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-04-05 04:35:45,144 INFO L403 AbstractCegarLoop]: === Iteration 56 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:45,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:45,144 INFO L85 PathProgramCache]: Analyzing trace with hash 887619099, now seen corresponding path program 1 times [2022-04-05 04:35:45,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:45,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109794991] [2022-04-05 04:35:45,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:45,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:45,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1134 proven. 28 refuted. 0 times theorem prover too weak. 1717 trivial. 0 not checked. [2022-04-05 04:35:45,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:45,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109794991] [2022-04-05 04:35:45,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109794991] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:35:45,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706645252] [2022-04-05 04:35:45,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:45,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:35:45,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:35:45,419 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 04:35:45,423 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 04:35:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:46,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 2573 conjuncts, 23 conjunts are in the unsatisfiable core [2022-04-05 04:35:46,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:35:46,648 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:35:46,649 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 04:35:46,717 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-04-05 04:35:46,717 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 04:35:47,028 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 04:35:47,167 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 36 treesize of output 24 [2022-04-05 04:35:47,187 INFO L356 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-04-05 04:35:47,187 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 50 treesize of output 88 [2022-04-05 04:35:47,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:35:47,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-04-05 04:35:47,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:35:47,206 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-04-05 04:35:47,293 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-04-05 04:35:47,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:35:47,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 21 treesize of output 13 [2022-04-05 04:35:47,378 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 04:35:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1129 proven. 220 refuted. 0 times theorem prover too weak. 1530 trivial. 0 not checked. [2022-04-05 04:35:47,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:35:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2879 backedges. 1124 proven. 0 refuted. 0 times theorem prover too weak. 1755 trivial. 0 not checked. [2022-04-05 04:35:48,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706645252] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-05 04:35:48,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-04-05 04:35:48,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8, 8] total 11 [2022-04-05 04:35:48,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60232599] [2022-04-05 04:35:48,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:48,037 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:35:48,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:48,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:35:48,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-04-05 04:35:48,038 INFO L87 Difference]: Start difference. First operand 12622 states and 18728 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 04:35:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:48,635 INFO L93 Difference]: Finished difference Result 14348 states and 21107 transitions. [2022-04-05 04:35:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:35:48,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 552 [2022-04-05 04:35:48,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:48,650 INFO L225 Difference]: With dead ends: 14348 [2022-04-05 04:35:48,650 INFO L226 Difference]: Without dead ends: 14348 [2022-04-05 04:35:48,650 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1114 GetRequests, 1104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-04-05 04:35:48,650 INFO L913 BasicCegarLoop]: 222 mSDtfsCounter, 117 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:48,651 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 561 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-05 04:35:48,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14348 states. [2022-04-05 04:35:48,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14348 to 12636. [2022-04-05 04:35:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12636 states, 12631 states have (on average 1.4834929934288654) internal successors, (18738), 12631 states have internal predecessors, (18738), 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 04:35:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12636 states to 12636 states and 18742 transitions. [2022-04-05 04:35:48,784 INFO L78 Accepts]: Start accepts. Automaton has 12636 states and 18742 transitions. Word has length 552 [2022-04-05 04:35:48,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:48,784 INFO L478 AbstractCegarLoop]: Abstraction has 12636 states and 18742 transitions. [2022-04-05 04:35:48,784 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 04:35:48,784 INFO L276 IsEmpty]: Start isEmpty. Operand 12636 states and 18742 transitions. [2022-04-05 04:35:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-05 04:35:48,795 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:48,796 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:48,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-05 04:35:48,996 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:35:48,996 INFO L403 AbstractCegarLoop]: === Iteration 57 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:48,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:48,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1184654259, now seen corresponding path program 1 times [2022-04-05 04:35:48,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:48,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773333938] [2022-04-05 04:35:48,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:48,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:49,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1598 proven. 0 refuted. 0 times theorem prover too weak. 1291 trivial. 0 not checked. [2022-04-05 04:35:49,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:49,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773333938] [2022-04-05 04:35:49,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773333938] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:49,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:49,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-05 04:35:49,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888945140] [2022-04-05 04:35:49,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:49,370 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-05 04:35:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:49,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-05 04:35:49,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-05 04:35:49,370 INFO L87 Difference]: Start difference. First operand 12636 states and 18742 transitions. Second operand has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states 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 04:35:51,907 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:53,935 WARN L534 Checker$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 04:35:55,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:35:57,025 WARN L534 Checker$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 04:35:57,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:35:57,788 INFO L93 Difference]: Finished difference Result 18787 states and 27802 transitions. [2022-04-05 04:35:57,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-05 04:35:57,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 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 553 [2022-04-05 04:35:57,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:35:57,806 INFO L225 Difference]: With dead ends: 18787 [2022-04-05 04:35:57,806 INFO L226 Difference]: Without dead ends: 18787 [2022-04-05 04:35:57,806 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:35:57,806 INFO L913 BasicCegarLoop]: 327 mSDtfsCounter, 121 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-04-05 04:35:57,806 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 1011 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 903 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-04-05 04:35:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18787 states. [2022-04-05 04:35:57,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18787 to 13173. [2022-04-05 04:35:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13173 states, 13168 states have (on average 1.4772174969623328) internal successors, (19452), 13168 states have internal predecessors, (19452), 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 04:35:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13173 states to 13173 states and 19456 transitions. [2022-04-05 04:35:57,934 INFO L78 Accepts]: Start accepts. Automaton has 13173 states and 19456 transitions. Word has length 553 [2022-04-05 04:35:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:35:57,934 INFO L478 AbstractCegarLoop]: Abstraction has 13173 states and 19456 transitions. [2022-04-05 04:35:57,934 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.666666666666664) internal successors, (214), 5 states have internal predecessors, (214), 1 states have call successors, (3), 2 states 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 04:35:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 13173 states and 19456 transitions. [2022-04-05 04:35:57,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-05 04:35:57,950 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:35:57,950 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:35:57,951 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-04-05 04:35:57,951 INFO L403 AbstractCegarLoop]: === Iteration 58 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:35:57,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:35:57,951 INFO L85 PathProgramCache]: Analyzing trace with hash 338088257, now seen corresponding path program 1 times [2022-04-05 04:35:57,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:35:57,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176336940] [2022-04-05 04:35:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:35:57,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:35:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:58,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:35:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:35:58,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2881 backedges. 1109 proven. 0 refuted. 0 times theorem prover too weak. 1772 trivial. 0 not checked. [2022-04-05 04:35:58,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:35:58,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176336940] [2022-04-05 04:35:58,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176336940] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:35:58,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:35:58,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:35:58,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919395615] [2022-04-05 04:35:58,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:35:58,180 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:35:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:35:58,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:35:58,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:35:58,180 INFO L87 Difference]: Start difference. First operand 13173 states and 19456 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states 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 04:35:59,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:01,958 WARN L534 Checker$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 04:36:03,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:05,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:05,533 INFO L93 Difference]: Finished difference Result 14655 states and 21598 transitions. [2022-04-05 04:36:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:36:05,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 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 553 [2022-04-05 04:36:05,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:05,549 INFO L225 Difference]: With dead ends: 14655 [2022-04-05 04:36:05,549 INFO L226 Difference]: Without dead ends: 14655 [2022-04-05 04:36:05,549 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 04:36:05,550 INFO L913 BasicCegarLoop]: 253 mSDtfsCounter, 38 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:05,550 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 631 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 515 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-04-05 04:36:05,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14655 states. [2022-04-05 04:36:05,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14655 to 14037. [2022-04-05 04:36:05,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14037 states, 14032 states have (on average 1.4766248574686431) internal successors, (20720), 14032 states have internal predecessors, (20720), 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 04:36:05,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14037 states to 14037 states and 20724 transitions. [2022-04-05 04:36:05,681 INFO L78 Accepts]: Start accepts. Automaton has 14037 states and 20724 transitions. Word has length 553 [2022-04-05 04:36:05,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:05,682 INFO L478 AbstractCegarLoop]: Abstraction has 14037 states and 20724 transitions. [2022-04-05 04:36:05,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 1 states have call successors, (3), 2 states 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 04:36:05,682 INFO L276 IsEmpty]: Start isEmpty. Operand 14037 states and 20724 transitions. [2022-04-05 04:36:05,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-05 04:36:05,697 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:05,698 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:05,698 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-04-05 04:36:05,698 INFO L403 AbstractCegarLoop]: === Iteration 59 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:05,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:05,698 INFO L85 PathProgramCache]: Analyzing trace with hash -34821972, now seen corresponding path program 1 times [2022-04-05 04:36:05,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:05,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401237004] [2022-04-05 04:36:05,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:05,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:06,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2889 trivial. 0 not checked. [2022-04-05 04:36:06,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:06,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401237004] [2022-04-05 04:36:06,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401237004] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:36:06,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:36:06,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-05 04:36:06,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301125811] [2022-04-05 04:36:06,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:36:06,453 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-05 04:36:06,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:06,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-05 04:36:06,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-04-05 04:36:06,454 INFO L87 Difference]: Start difference. First operand 14037 states and 20724 transitions. Second operand has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:07,752 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:09,774 WARN L534 Checker$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 04:36:12,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:14,088 WARN L534 Checker$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 04:36:15,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:36:15,401 INFO L93 Difference]: Finished difference Result 14045 states and 20734 transitions. [2022-04-05 04:36:15,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-05 04:36:15,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-04-05 04:36:15,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:36:15,414 INFO L225 Difference]: With dead ends: 14045 [2022-04-05 04:36:15,414 INFO L226 Difference]: Without dead ends: 14037 [2022-04-05 04:36:15,414 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-04-05 04:36:15,414 INFO L913 BasicCegarLoop]: 221 mSDtfsCounter, 7 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-04-05 04:36:15,414 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 901 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 455 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2022-04-05 04:36:15,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14037 states. [2022-04-05 04:36:15,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14037 to 14037. [2022-04-05 04:36:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14037 states, 14032 states have (on average 1.4765535917901937) internal successors, (20719), 14032 states have internal predecessors, (20719), 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 04:36:15,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14037 states to 14037 states and 20723 transitions. [2022-04-05 04:36:15,533 INFO L78 Accepts]: Start accepts. Automaton has 14037 states and 20723 transitions. Word has length 553 [2022-04-05 04:36:15,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:36:15,533 INFO L478 AbstractCegarLoop]: Abstraction has 14037 states and 20723 transitions. [2022-04-05 04:36:15,533 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand 14037 states and 20723 transitions. [2022-04-05 04:36:15,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-04-05 04:36:15,549 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:36:15,549 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:36:15,549 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-04-05 04:36:15,550 INFO L403 AbstractCegarLoop]: === Iteration 60 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:36:15,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:36:15,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1255221357, now seen corresponding path program 1 times [2022-04-05 04:36:15,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:36:15,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828392215] [2022-04-05 04:36:15,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:15,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:36:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:16,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:36:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1369 proven. 365 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2022-04-05 04:36:16,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:36:16,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828392215] [2022-04-05 04:36:16,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828392215] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:36:16,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795412272] [2022-04-05 04:36:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:36:16,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:36:16,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:36:16,686 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 04:36:16,686 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 04:36:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:36:17,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 112 conjunts are in the unsatisfiable core [2022-04-05 04:36:17,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:36:18,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:18,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-04-05 04:36:18,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:18,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:18,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:18,231 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 04:36:18,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 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 04:36:18,627 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 04:36:18,783 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 04:36:18,810 INFO L356 Elim1Store]: treesize reduction 31, result has 44.6 percent of original size [2022-04-05 04:36:18,810 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 69 [2022-04-05 04:36:18,820 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-04-05 04:36:18,821 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 51 treesize of output 55 [2022-04-05 04:36:18,825 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 17 treesize of output 13 [2022-04-05 04:36:18,837 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 19 treesize of output 15 [2022-04-05 04:36:18,848 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 23 treesize of output 15 [2022-04-05 04:36:18,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:18,915 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 70 treesize of output 57 [2022-04-05 04:36:18,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:18,918 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 70 treesize of output 69 [2022-04-05 04:36:18,934 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-04-05 04:36:18,935 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 75 treesize of output 85 [2022-04-05 04:36:18,975 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 04:36:18,994 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 13 treesize of output 3 [2022-04-05 04:36:19,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:19,104 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 04:36:19,126 INFO L356 Elim1Store]: treesize reduction 72, result has 40.0 percent of original size [2022-04-05 04:36:19,126 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 04:36:19,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:19,129 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 73 treesize of output 66 [2022-04-05 04:36:19,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:19,835 INFO L356 Elim1Store]: treesize reduction 127, result has 14.2 percent of original size [2022-04-05 04:36:19,835 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 04:36:19,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:19,840 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 04:36:19,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:19,845 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 04:36:19,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:19,929 INFO L356 Elim1Store]: treesize reduction 77, result has 35.8 percent of original size [2022-04-05 04:36:19,930 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 04:36:19,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:19,935 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 04:36:19,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:19,939 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 04:36:20,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:20,863 INFO L356 Elim1Store]: treesize reduction 60, result has 45.9 percent of original size [2022-04-05 04:36:20,864 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 04:36:20,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:20,901 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-04-05 04:36:20,901 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 04:36:20,944 INFO L356 Elim1Store]: treesize reduction 45, result has 52.6 percent of original size [2022-04-05 04:36:20,945 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 04:36:22,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,031 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 336 treesize of output 270 [2022-04-05 04:36:22,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,039 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 336 treesize of output 276 [2022-04-05 04:36:22,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:22,066 INFO L356 Elim1Store]: treesize reduction 148, result has 30.2 percent of original size [2022-04-05 04:36:22,066 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 336 treesize of output 355 [2022-04-05 04:36:26,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,369 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 317 treesize of output 253 [2022-04-05 04:36:26,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,375 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 317 treesize of output 259 [2022-04-05 04:36:26,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,397 INFO L356 Elim1Store]: treesize reduction 105, result has 29.1 percent of original size [2022-04-05 04:36:26,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 326 treesize of output 317 [2022-04-05 04:36:26,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,651 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 219 treesize of output 159 [2022-04-05 04:36:26,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,656 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 159 treesize of output 93 [2022-04-05 04:36:26,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,702 INFO L356 Elim1Store]: treesize reduction 115, result has 35.4 percent of original size [2022-04-05 04:36:26,703 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 121 treesize of output 149 [2022-04-05 04:36:26,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:36:26,782 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 04:36:26,782 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 1 case distinctions, treesize of input 33 treesize of output 35 [2022-04-05 04:36:26,975 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-05 04:36:26,975 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 1 case distinctions, treesize of input 23 treesize of output 11 [2022-04-05 04:36:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1207 proven. 483 refuted. 0 times theorem prover too weak. 1199 trivial. 0 not checked. [2022-04-05 04:36:27,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:36:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1343 proven. 139 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-04-05 04:36:30,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795412272] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 04:36:30,062 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 04:36:30,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 24, 12] total 44 [2022-04-05 04:36:30,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572563119] [2022-04-05 04:36:30,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 04:36:30,063 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-04-05 04:36:30,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:36:30,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-04-05 04:36:30,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=1611, Unknown=0, NotChecked=0, Total=1892 [2022-04-05 04:36:30,064 INFO L87 Difference]: Start difference. First operand 14037 states and 20723 transitions. Second operand has 44 states, 44 states have (on average 15.727272727272727) internal successors, (692), 42 states have internal predecessors, (692), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:36:33,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:35,522 WARN L534 Checker$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 04:36:37,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:38,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:40,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:42,163 WARN L534 Checker$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 04:36:43,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:45,479 WARN L534 Checker$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 04:36:47,504 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:48,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:36:50,494 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 04:37:09,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:09,675 INFO L93 Difference]: Finished difference Result 78804 states and 114038 transitions. [2022-04-05 04:37:09,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2022-04-05 04:37:09,676 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 15.727272727272727) internal successors, (692), 42 states have internal predecessors, (692), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 553 [2022-04-05 04:37:09,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:09,808 INFO L225 Difference]: With dead ends: 78804 [2022-04-05 04:37:09,808 INFO L226 Difference]: Without dead ends: 78804 [2022-04-05 04:37:09,811 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1373 GetRequests, 1173 SyntacticMatches, 14 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13291 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=4328, Invalid=30828, Unknown=0, NotChecked=0, Total=35156 [2022-04-05 04:37:09,811 INFO L913 BasicCegarLoop]: 797 mSDtfsCounter, 4817 mSDsluCounter, 14967 mSDsCounter, 0 mSdLazyCounter, 14472 mSolverCounterSat, 850 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4817 SdHoareTripleChecker+Valid, 15764 SdHoareTripleChecker+Invalid, 20263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 14472 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 4937 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:09,811 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4817 Valid, 15764 Invalid, 20263 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [850 Valid, 14472 Invalid, 4 Unknown, 4937 Unchecked, 32.7s Time] [2022-04-05 04:37:09,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78804 states. [2022-04-05 04:37:10,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78804 to 36498. [2022-04-05 04:37:10,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36498 states, 36493 states have (on average 1.4889704874907517) internal successors, (54337), 36493 states have internal predecessors, (54337), 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 04:37:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36498 states to 36498 states and 54341 transitions. [2022-04-05 04:37:10,502 INFO L78 Accepts]: Start accepts. Automaton has 36498 states and 54341 transitions. Word has length 553 [2022-04-05 04:37:10,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:10,502 INFO L478 AbstractCegarLoop]: Abstraction has 36498 states and 54341 transitions. [2022-04-05 04:37:10,502 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 15.727272727272727) internal successors, (692), 42 states have internal predecessors, (692), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-05 04:37:10,502 INFO L276 IsEmpty]: Start isEmpty. Operand 36498 states and 54341 transitions. [2022-04-05 04:37:10,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2022-04-05 04:37:10,576 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:10,576 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:10,602 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 04:37:10,776 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-04-05 04:37:10,777 INFO L403 AbstractCegarLoop]: === Iteration 61 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:10,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:10,781 INFO L85 PathProgramCache]: Analyzing trace with hash 570923016, now seen corresponding path program 1 times [2022-04-05 04:37:10,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:10,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202109542] [2022-04-05 04:37:10,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:10,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2859 backedges. 1307 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2022-04-05 04:37:11,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:11,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202109542] [2022-04-05 04:37:11,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202109542] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:11,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:11,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:37:11,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199830576] [2022-04-05 04:37:11,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:11,018 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:37:11,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:11,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:37:11,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:37:11,018 INFO L87 Difference]: Start difference. First operand 36498 states and 54341 transitions. Second operand has 5 states, 5 states have (on average 41.2) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 2 states 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 04:37:13,537 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 04:37:14,835 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 04:37:15,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:15,612 INFO L93 Difference]: Finished difference Result 38204 states and 56480 transitions. [2022-04-05 04:37:15,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:37:15,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 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 556 [2022-04-05 04:37:15,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:15,654 INFO L225 Difference]: With dead ends: 38204 [2022-04-05 04:37:15,654 INFO L226 Difference]: Without dead ends: 38204 [2022-04-05 04:37:15,654 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 04:37:15,655 INFO L913 BasicCegarLoop]: 271 mSDtfsCounter, 70 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:15,655 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 667 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 564 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-04-05 04:37:15,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38204 states. [2022-04-05 04:37:15,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38204 to 36498. [2022-04-05 04:37:15,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36498 states, 36493 states have (on average 1.4871893239799414) internal successors, (54272), 36493 states have internal predecessors, (54272), 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 04:37:16,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36498 states to 36498 states and 54276 transitions. [2022-04-05 04:37:16,044 INFO L78 Accepts]: Start accepts. Automaton has 36498 states and 54276 transitions. Word has length 556 [2022-04-05 04:37:16,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:16,045 INFO L478 AbstractCegarLoop]: Abstraction has 36498 states and 54276 transitions. [2022-04-05 04:37:16,045 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 4 states have internal predecessors, (206), 1 states have call successors, (3), 2 states 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 04:37:16,045 INFO L276 IsEmpty]: Start isEmpty. Operand 36498 states and 54276 transitions. [2022-04-05 04:37:16,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-04-05 04:37:16,084 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:16,084 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:16,084 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-04-05 04:37:16,084 INFO L403 AbstractCegarLoop]: === Iteration 62 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:16,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:16,084 INFO L85 PathProgramCache]: Analyzing trace with hash -513346673, now seen corresponding path program 1 times [2022-04-05 04:37:16,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:16,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875108979] [2022-04-05 04:37:16,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:16,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2869 backedges. 1317 proven. 0 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2022-04-05 04:37:16,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:16,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875108979] [2022-04-05 04:37:16,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875108979] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:16,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:16,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:37:16,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416066898] [2022-04-05 04:37:16,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:16,298 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:37:16,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:16,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:37:16,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:37:16,298 INFO L87 Difference]: Start difference. First operand 36498 states and 54276 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states 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 04:37:17,897 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 04:37:19,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:22,511 WARN L534 Checker$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 04:37:23,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:23,063 INFO L93 Difference]: Finished difference Result 37980 states and 56051 transitions. [2022-04-05 04:37:23,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:37:23,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 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 557 [2022-04-05 04:37:23,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:23,106 INFO L225 Difference]: With dead ends: 37980 [2022-04-05 04:37:23,106 INFO L226 Difference]: Without dead ends: 37980 [2022-04-05 04:37:23,106 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 04:37:23,106 INFO L913 BasicCegarLoop]: 266 mSDtfsCounter, 59 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:23,106 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 657 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 528 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-04-05 04:37:23,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37980 states. [2022-04-05 04:37:23,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37980 to 36498. [2022-04-05 04:37:23,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36498 states, 36493 states have (on average 1.4854081604691312) internal successors, (54207), 36493 states have internal predecessors, (54207), 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 04:37:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36498 states to 36498 states and 54211 transitions. [2022-04-05 04:37:23,491 INFO L78 Accepts]: Start accepts. Automaton has 36498 states and 54211 transitions. Word has length 557 [2022-04-05 04:37:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:23,492 INFO L478 AbstractCegarLoop]: Abstraction has 36498 states and 54211 transitions. [2022-04-05 04:37:23,492 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states 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 04:37:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 36498 states and 54211 transitions. [2022-04-05 04:37:23,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-04-05 04:37:23,526 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:23,526 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:23,526 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-04-05 04:37:23,527 INFO L403 AbstractCegarLoop]: === Iteration 63 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:23,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:23,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1280817646, now seen corresponding path program 1 times [2022-04-05 04:37:23,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:23,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475808927] [2022-04-05 04:37:23,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:23,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2905 backedges. 1093 proven. 0 refuted. 0 times theorem prover too weak. 1812 trivial. 0 not checked. [2022-04-05 04:37:23,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:23,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475808927] [2022-04-05 04:37:23,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475808927] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:37:23,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:37:23,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:37:23,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881558419] [2022-04-05 04:37:23,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:37:23,861 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:37:23,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:23,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:37:23,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:37:23,862 INFO L87 Difference]: Start difference. First operand 36498 states and 54211 transitions. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 states 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 04:37:25,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:27,129 WARN L534 Checker$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 04:37:28,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:30,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:30,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:37:30,578 INFO L93 Difference]: Finished difference Result 38745 states and 57171 transitions. [2022-04-05 04:37:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:37:30,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 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 557 [2022-04-05 04:37:30,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:37:30,623 INFO L225 Difference]: With dead ends: 38745 [2022-04-05 04:37:30,623 INFO L226 Difference]: Without dead ends: 38745 [2022-04-05 04:37:30,623 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 04:37:30,627 INFO L913 BasicCegarLoop]: 237 mSDtfsCounter, 14 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-04-05 04:37:30,627 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 599 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 396 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-04-05 04:37:30,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38745 states. [2022-04-05 04:37:31,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38745 to 38220. [2022-04-05 04:37:31,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38220 states, 38215 states have (on average 1.478555541017925) internal successors, (56503), 38215 states have internal predecessors, (56503), 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 04:37:31,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38220 states to 38220 states and 56507 transitions. [2022-04-05 04:37:31,078 INFO L78 Accepts]: Start accepts. Automaton has 38220 states and 56507 transitions. Word has length 557 [2022-04-05 04:37:31,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:37:31,079 INFO L478 AbstractCegarLoop]: Abstraction has 38220 states and 56507 transitions. [2022-04-05 04:37:31,079 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 4 states have internal predecessors, (192), 1 states have call successors, (3), 2 states 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 04:37:31,079 INFO L276 IsEmpty]: Start isEmpty. Operand 38220 states and 56507 transitions. [2022-04-05 04:37:31,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-04-05 04:37:31,116 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:37:31,116 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:31,116 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-04-05 04:37:31,116 INFO L403 AbstractCegarLoop]: === Iteration 64 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:37:31,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:37:31,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1707958271, now seen corresponding path program 1 times [2022-04-05 04:37:31,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:37:31,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784177606] [2022-04-05 04:37:31,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:31,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:37:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:33,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:37:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:33,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1202 proven. 1422 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-04-05 04:37:33,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:37:33,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784177606] [2022-04-05 04:37:33,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784177606] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-05 04:37:33,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [208288769] [2022-04-05 04:37:33,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:37:33,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:37:33,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-05 04:37:33,199 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 04:37:33,212 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 04:37:34,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:37:34,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 32 conjunts are in the unsatisfiable core [2022-04-05 04:37:34,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-05 04:37:35,043 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 6 treesize of output 5 [2022-04-05 04:37:35,167 INFO L356 Elim1Store]: treesize reduction 49, result has 46.7 percent of original size [2022-04-05 04:37:35,168 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 36 treesize of output 57 [2022-04-05 04:37:35,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-05 04:37:35,173 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 57 treesize of output 50 [2022-04-05 04:37:35,181 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-04-05 04:37:35,181 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 57 treesize of output 50 [2022-04-05 04:37:35,225 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 66 treesize of output 48 [2022-04-05 04:37:35,227 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 48 treesize of output 30 [2022-04-05 04:37:35,299 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 0 case distinctions, treesize of input 29 treesize of output 13 [2022-04-05 04:37:35,356 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 04:37:35,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1586 proven. 26 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-04-05 04:37:35,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-05 04:37:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2889 backedges. 1586 proven. 26 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-04-05 04:37:36,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [208288769] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-05 04:37:36,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-05 04:37:36,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 8, 8] total 32 [2022-04-05 04:37:36,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559065630] [2022-04-05 04:37:36,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-05 04:37:36,373 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-04-05 04:37:36,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:37:36,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-04-05 04:37:36,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=872, Unknown=0, NotChecked=0, Total=992 [2022-04-05 04:37:36,377 INFO L87 Difference]: Start difference. First operand 38220 states and 56507 transitions. Second operand has 32 states, 32 states have (on average 19.71875) internal successors, (631), 31 states have internal predecessors, (631), 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 04:37:37,416 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:39,438 WARN L534 Checker$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 04:37:41,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:42,592 WARN L534 Checker$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 04:37:44,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:46,107 WARN L534 Checker$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 04:37:48,528 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:50,271 WARN L534 Checker$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 04:37:51,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:37:53,796 WARN L534 Checker$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 04:38:36,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:38:36,118 INFO L93 Difference]: Finished difference Result 673724 states and 955828 transitions. [2022-04-05 04:38:36,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2022-04-05 04:38:36,120 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 19.71875) internal successors, (631), 31 states have internal predecessors, (631), 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 557 [2022-04-05 04:38:36,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:38:37,730 INFO L225 Difference]: With dead ends: 673724 [2022-04-05 04:38:37,730 INFO L226 Difference]: Without dead ends: 673668 [2022-04-05 04:38:37,743 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 1532 GetRequests, 1210 SyntacticMatches, 3 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41876 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=12161, Invalid=90559, Unknown=0, NotChecked=0, Total=102720 [2022-04-05 04:38:37,743 INFO L913 BasicCegarLoop]: 1294 mSDtfsCounter, 12041 mSDsluCounter, 18201 mSDsCounter, 0 mSdLazyCounter, 19953 mSolverCounterSat, 2705 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12041 SdHoareTripleChecker+Valid, 19495 SdHoareTripleChecker+Invalid, 23622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2705 IncrementalHoareTripleChecker+Valid, 19953 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 959 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2022-04-05 04:38:37,745 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12041 Valid, 19495 Invalid, 23622 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2705 Valid, 19953 Invalid, 5 Unknown, 959 Unchecked, 40.3s Time] [2022-04-05 04:38:38,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673668 states. [2022-04-05 04:38:43,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673668 to 396446. [2022-04-05 04:38:44,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396446 states, 396441 states have (on average 1.4578815006520516) internal successors, (577964), 396441 states have internal predecessors, (577964), 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 04:38:45,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396446 states to 396446 states and 577968 transitions. [2022-04-05 04:38:45,285 INFO L78 Accepts]: Start accepts. Automaton has 396446 states and 577968 transitions. Word has length 557 [2022-04-05 04:38:45,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:38:45,285 INFO L478 AbstractCegarLoop]: Abstraction has 396446 states and 577968 transitions. [2022-04-05 04:38:45,285 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 19.71875) internal successors, (631), 31 states have internal predecessors, (631), 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 04:38:45,285 INFO L276 IsEmpty]: Start isEmpty. Operand 396446 states and 577968 transitions. [2022-04-05 04:38:45,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2022-04-05 04:38:45,816 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:38:45,817 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:38:45,851 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 04:38:46,017 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-05 04:38:46,017 INFO L403 AbstractCegarLoop]: === Iteration 65 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:38:46,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:38:46,018 INFO L85 PathProgramCache]: Analyzing trace with hash -861390349, now seen corresponding path program 1 times [2022-04-05 04:38:46,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:38:46,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647624590] [2022-04-05 04:38:46,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:38:46,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:38:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:38:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:38:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:38:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2922 backedges. 1131 proven. 0 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2022-04-05 04:38:46,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:38:46,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647624590] [2022-04-05 04:38:46,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647624590] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:38:46,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:38:46,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:38:46,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813102146] [2022-04-05 04:38:46,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:38:46,317 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:38:46,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:38:46,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:38:46,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:38:46,317 INFO L87 Difference]: Start difference. First operand 396446 states and 577968 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states 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 04:38:47,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:38:49,630 WARN L534 Checker$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 04:38:50,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:38:52,946 WARN L534 Checker$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 04:38:54,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:38:54,625 INFO L93 Difference]: Finished difference Result 417457 states and 604545 transitions. [2022-04-05 04:38:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:38:54,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 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 558 [2022-04-05 04:38:54,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:38:55,195 INFO L225 Difference]: With dead ends: 417457 [2022-04-05 04:38:55,196 INFO L226 Difference]: Without dead ends: 417457 [2022-04-05 04:38:55,196 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 04:38:55,196 INFO L913 BasicCegarLoop]: 268 mSDtfsCounter, 54 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-04-05 04:38:55,196 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 662 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 546 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-04-05 04:38:55,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417457 states. [2022-04-05 04:38:59,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417457 to 396110. [2022-04-05 04:38:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396110 states, 396105 states have (on average 1.4552580755102813) internal successors, (576435), 396105 states have internal predecessors, (576435), 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 04:39:01,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396110 states to 396110 states and 576439 transitions. [2022-04-05 04:39:01,097 INFO L78 Accepts]: Start accepts. Automaton has 396110 states and 576439 transitions. Word has length 558 [2022-04-05 04:39:01,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:39:01,097 INFO L478 AbstractCegarLoop]: Abstraction has 396110 states and 576439 transitions. [2022-04-05 04:39:01,097 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 1 states have call successors, (3), 2 states 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 04:39:01,097 INFO L276 IsEmpty]: Start isEmpty. Operand 396110 states and 576439 transitions. [2022-04-05 04:39:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-04-05 04:39:01,432 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:39:01,432 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:39:01,432 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-04-05 04:39:01,432 INFO L403 AbstractCegarLoop]: === Iteration 66 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:39:01,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:39:01,432 INFO L85 PathProgramCache]: Analyzing trace with hash 627084374, now seen corresponding path program 1 times [2022-04-05 04:39:01,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:39:01,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603092217] [2022-04-05 04:39:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:39:01,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:39:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:39:01,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:39:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:39:01,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2907 backedges. 1121 proven. 0 refuted. 0 times theorem prover too weak. 1786 trivial. 0 not checked. [2022-04-05 04:39:01,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:39:01,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603092217] [2022-04-05 04:39:01,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603092217] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:39:01,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:39:01,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-05 04:39:01,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028674139] [2022-04-05 04:39:01,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:39:01,829 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-05 04:39:01,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:39:01,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-05 04:39:01,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-05 04:39:01,830 INFO L87 Difference]: Start difference. First operand 396110 states and 576439 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states 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 04:39:03,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:39:05,451 WARN L534 Checker$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 04:39:06,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-04-05 04:39:08,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:39:08,474 INFO L93 Difference]: Finished difference Result 457298 states and 663509 transitions. [2022-04-05 04:39:08,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-05 04:39:08,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 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 559 [2022-04-05 04:39:08,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:39:09,137 INFO L225 Difference]: With dead ends: 457298 [2022-04-05 04:39:09,137 INFO L226 Difference]: Without dead ends: 457298 [2022-04-05 04:39:09,137 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 04:39:09,137 INFO L913 BasicCegarLoop]: 264 mSDtfsCounter, 49 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-04-05 04:39:09,137 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 653 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 533 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-04-05 04:39:09,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457298 states. [2022-04-05 04:39:14,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457298 to 438683. [2022-04-05 04:39:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438683 states, 438678 states have (on average 1.4558970360948122) internal successors, (638670), 438678 states have internal predecessors, (638670), 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 04:39:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438683 states to 438683 states and 638674 transitions. [2022-04-05 04:39:15,639 INFO L78 Accepts]: Start accepts. Automaton has 438683 states and 638674 transitions. Word has length 559 [2022-04-05 04:39:15,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:39:15,639 INFO L478 AbstractCegarLoop]: Abstraction has 438683 states and 638674 transitions. [2022-04-05 04:39:15,639 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 1 states have call successors, (3), 2 states 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 04:39:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 438683 states and 638674 transitions. [2022-04-05 04:39:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2022-04-05 04:39:16,357 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:39:16,358 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 10, 9, 9, 8, 8, 7, 7, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:39:16,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-04-05 04:39:16,358 INFO L403 AbstractCegarLoop]: === Iteration 67 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:39:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:39:16,358 INFO L85 PathProgramCache]: Analyzing trace with hash -756343644, now seen corresponding path program 1 times [2022-04-05 04:39:16,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:39:16,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506969589] [2022-04-05 04:39:16,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:39:16,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:39:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:39:16,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:39:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:39:16,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2894 backedges. 1647 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2022-04-05 04:39:16,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:39:16,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506969589] [2022-04-05 04:39:16,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506969589] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:39:16,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:39:16,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-05 04:39:16,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197780722] [2022-04-05 04:39:16,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:39:16,818 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-05 04:39:16,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:39:16,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-05 04:39:16,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-05 04:39:16,819 INFO L87 Difference]: Start difference. First operand 438683 states and 638674 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 1 states have call successors, (3), 2 states 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 04:39:20,538 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 04:39:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-05 04:39:22,334 INFO L93 Difference]: Finished difference Result 444175 states and 638730 transitions. [2022-04-05 04:39:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-05 04:39:22,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 1 states have call successors, (3), 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 559 [2022-04-05 04:39:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-05 04:39:23,304 INFO L225 Difference]: With dead ends: 444175 [2022-04-05 04:39:23,304 INFO L226 Difference]: Without dead ends: 444175 [2022-04-05 04:39:23,304 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 04:39:23,304 INFO L913 BasicCegarLoop]: 224 mSDtfsCounter, 166 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-04-05 04:39:23,304 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 237 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 236 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-04-05 04:39:23,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444175 states. [2022-04-05 04:39:27,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444175 to 441791. [2022-04-05 04:39:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441791 states, 441786 states have (on average 1.4403851638576144) internal successors, (636342), 441786 states have internal predecessors, (636342), 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 04:39:29,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441791 states to 441791 states and 636346 transitions. [2022-04-05 04:39:29,652 INFO L78 Accepts]: Start accepts. Automaton has 441791 states and 636346 transitions. Word has length 559 [2022-04-05 04:39:29,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-05 04:39:29,653 INFO L478 AbstractCegarLoop]: Abstraction has 441791 states and 636346 transitions. [2022-04-05 04:39:29,653 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 1 states have call successors, (3), 2 states 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 04:39:29,653 INFO L276 IsEmpty]: Start isEmpty. Operand 441791 states and 636346 transitions. [2022-04-05 04:39:30,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2022-04-05 04:39:30,061 INFO L491 BasicCegarLoop]: Found error trace [2022-04-05 04:39:30,061 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:39:30,061 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-04-05 04:39:30,061 INFO L403 AbstractCegarLoop]: === Iteration 68 === Targeting ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-05 04:39:30,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-05 04:39:30,062 INFO L85 PathProgramCache]: Analyzing trace with hash -557673270, now seen corresponding path program 1 times [2022-04-05 04:39:30,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-05 04:39:30,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846762453] [2022-04-05 04:39:30,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-05 04:39:30,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-05 04:39:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:39:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-05 04:39:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-05 04:39:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2943 backedges. 1574 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2022-04-05 04:39:30,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-05 04:39:30,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846762453] [2022-04-05 04:39:30,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846762453] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-05 04:39:30,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-05 04:39:30,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-04-05 04:39:30,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766763325] [2022-04-05 04:39:30,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-05 04:39:30,610 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-05 04:39:30,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-05 04:39:30,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-05 04:39:30,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-04-05 04:39:30,610 INFO L87 Difference]: Start difference. First operand 441791 states and 636346 transitions. Second operand has 8 states, 8 states have (on average 26.375) internal successors, (211), 7 states have internal predecessors, (211), 1 states have call successors, (3), 2 states 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 04:39:32,618 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 []